Buckle and method for releasing the connection thereof

Abstract

The present application provides a buckle including a first member and a second member capable of being joined based on magnetic engagement, and a method for releasing the joining thereof. The first member includes a first main body including a first fitting portion, a cover member installed to the first main body in a manner capable of sliding in a lateral direction, and including a first engaging portion, and a first magnetic body fixed to the cover member. The second member includes a second main body and a second magnetic body fixed to the second main body. The second main body includes a second fitting portion and a second engaging portion. At least one of the first magnetic body and the second magnetic body is a magnet. Based on magnetic engagement of the first magnetic body and the second magnetic body, the first fitting portion and the second fitting portion are capable of fitting to each other, preventing separation of the first member and the second member in the lateral direction. The first engaging portion and the second engaging portion are capable of engaging to each other, preventing separation of the first member and the second member in an up-down direction orthogonal to the lateral direction or in a direction along the up-down direction.

Description

Technical Field

[0001] This invention relates to a buckle and a method for releasing the buckle. Background Technology

[0002] In recent years, magnets have been installed in each component of a buckle to achieve automatic connection of the various components (see Patent Documents 1 to 4). Patent Document 1 discloses a semi-finished component in which a pusher piece is inserted into a hollow body (see Patent Document 1). Figure 1 ).

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Chinese Utility Model Patent No. 221533019

[0006] Patent Document 2: Japanese Patent No. 6381543

[0007] Patent Document 3: Description of Chinese Utility Model Patent No. 221599360

[0008] Patent Document 4: Description of Chinese Utility Model Patent No. 221576941

[0009] In Patent Document 1, in addition to operating the moving plate with a rope, an operating part is also provided on the moving plate (see this document). Figure 1 (See reference numeral 225 in the attached figure) The sliding plate can be pushed with a finger to make it slide without pulling the cord. However, the operating part of the sliding plate is a part of the sliding plate that is exposed from the hollow body, and the user's finger cannot easily reach the operating part of the sliding plate.

[0010] As can be seen from the above non-limiting description, it has the technical significance of simplifying the disconnection of the components of a magnetically engaged buckle.

[0011] The fact that the user's fingers could easily come into contact with the push plate in Patent Document 1 could lead to the accidental disengagement of the buckle components. Based on this background, the inventors of this application conceived the following invention. Summary of the Invention

[0012] One aspect of this disclosure relates to a buckle comprising a first component and a second component capable of being connected based on magnetic engagement. The first component includes: a first body including a first engaging portion; a cover component mounted laterally relative to the first body and including a first engaging portion; and a first magnetic body fixed to the cover component. The second component includes: a second body; and a second magnetic body fixed to the second body, the second body including: a second engaging portion capable of engaging with the first engaging portion; and a second engaging portion capable of engaging with the first engaging portion. At least one of the first and second magnetic bodies is a magnet. Based on the magnetic engagement of the first and second magnetic bodies, the first and second engaging portions can engage with each other, and this engagement prevents the first and second components from separating laterally. The first and second engaging portions can also engage with each other, and this engagement prevents the first and second components from separating in a vertical direction orthogonal to the lateral direction or along that vertical direction. The cover component is installed on the first body in such a way that it covers the first body from above.

[0013] Another aspect of this disclosure relates to a buckle connection and release method, which includes a first component and a second component capable of being connected based on magnetic engagement. The first component includes: a first body including a first fitting portion; a cover component slidably mounted on the first body and including a first engaging portion; and a first magnetic body fixed to the cover component. The second component includes: a second body; a second magnetic body fixed to the second body, the second body including: a second fitting portion capable of engaging with the first fitting portion; and a second engaging portion capable of engaging with the first engaging portion. At least one of the first and second magnetic bodies is a magnet. The magnetic engagement of the first and second magnetic bodies allows the first and second fitting parts to engage with each other, preventing the first and second components from separating laterally. The first and second locking parts can also engage with each other, preventing the first and second components from separating in a vertical direction orthogonal to the lateral direction or along that direction. The cover component is installed on the first body in a manner that covers the first body from above. The connection release method includes: the user holding the cover component with their thumb and forefinger in the width direction of the first component orthogonal to the lateral and vertical directions, overcoming the magnetic engagement of the first and second magnetic bodies, and causing the cover component to slide relative to the first body.

[0014] In some embodiments, the cover component includes a main board, a left side panel, and a right side panel, which are arranged facing each other at a distance spaced apart in a width direction orthogonal to the lateral and vertical directions, such that the distance allows the user to hold the cover component between their thumb and forefinger.

[0015] In some embodiments, the left side plate includes a first recess recessed to the right and / or includes a left side surface with an uneven surface. The right side plate includes a second recess recessed to the left and / or includes a right side surface with an uneven surface.

[0016] In some embodiments, the first magnetic body is a first magnet, the left side plate includes a first recess that is recessed to the right, the right side plate includes a second recess that is recessed to the left, and the magnetic axis of the first magnet can be disposed between the first recess and the second recess.

[0017] In some embodiments, the first magnetic body is a first magnet, the left side plate includes a left outer surface with a concave and convex surface, the right side plate includes a right outer surface with a concave and convex surface, and the magnetic axis of the first magnet can be disposed between the concave and convex surfaces of the left side plate and the right side plate.

[0018] In some embodiments, the first body includes a frame, which includes a first fitting portion, a left guide rail, a right guide rail, and a first mounting portion.

[0019] In some implementations, the cover component is mounted to the left and right guide rails by means of a snap-fit ​​connection.

[0020] In some embodiments, a first protrusion with a first downwardly inclined surface is provided at the upper end of the left guide rail, a second protrusion with a second downwardly inclined surface is provided at the upper end of the right guide rail, a third protrusion is provided on the left side plate, and a fourth protrusion is provided on the right side plate. A first groove for the first protrusion to be inserted is formed between the third protrusion and the main board, and a second groove for the second protrusion to be inserted is provided between the fourth protrusion and the main board. A third groove is provided below the first protrusion, and a fourth groove is provided below the second protrusion. When the cover component is installed on the first body, the third protrusion moves downward along the first downwardly inclined surface, and the fourth protrusion moves downward along the second downwardly inclined surface. Finally, the first protrusion is inserted into the first groove, the second protrusion is inserted into the second groove, the third protrusion is inserted into the third groove, and the fourth protrusion is inserted into the fourth groove.

[0021] In some implementations, the left side plate is arranged adjacent to the left side of the left side guide rail, and the right side plate is arranged adjacent to the right side of the right side guide rail.

[0022] In some embodiments, the second body includes a flat plate portion to which a second magnetic body is fixed. The flat plate portion includes a left edge disposed adjacent to the left guide rail and a right edge disposed adjacent to the right guide rail when the first component and the second component are connected.

[0023] In some embodiments, a first retaining portion for holding a first magnetic body is provided on the lower surface of the motherboard. The first engaging portion includes a hook head that is connected to the first retaining portion at a position downward away from the lower surface of the motherboard and protrudes laterally from the first retaining portion.

[0024] In some embodiments, the first retaining portion includes a peripheral wall surrounding the first magnetic body, and an annular rib for retaining the first magnetic body within the peripheral wall is provided on the inner wall surface of the peripheral wall. The annular rib is disposed such that it is offset upward from the opening end of the peripheral wall.

[0025] In some embodiments, the first retaining portion further includes a protrusion that protrudes downward from the lower surface of the motherboard to contact the upper surface of the first magnet.

[0026] In some embodiments, the second body includes a second belt mounting portion, and the cover component is positioned to partially cover the second belt mounting portion while the first component and the second component are connected.

[0027] In some embodiments, the first fitting portion includes a male portion, and the second fitting portion includes a female groove into which the male portion is inserted.

[0028] Invention Effects

[0029] According to one aspect of this disclosure, it is possible to simplify the decoupling of the first component and the second component. Attached Figure Description

[0030] Figure 1 This is a schematic perspective view of a buckle according to one aspect of this disclosure. With respect to the first component, a cover component separated upwards from the first body is shown in solid lines. The cover component in its mounted state on the first body is shown in imaginary lines. A first fitting portion of the first component and a second fitting portion of the second component engage, connecting the first and second components.

[0031] Figure 2 It is a schematic partial perspective view of the buckle, which also shows the cross-section of the buckle along the transverse direction at the center of the buckle in the width direction.

[0032] Figure 3 This is a schematic partial perspective view of the first component, along with a cross-section of the first component along its width.

[0033] Figure 4 This is a top view of the buckle.

[0034] Figure 5 This is a side view of the buckle.

[0035] Figure 6 yes Figure 4 A schematic cross-sectional view of the buckle at the dashed line VI-VI shown.

[0036] Figure 7 yes Figure 4 The schematic end view of the buckle at the dashed line VII-VII shown also includes an auxiliary protrusion indicated by dashed lines.

[0037] Figure 8 (A) shows a top view of the frame of the first main body. Figure 8 (B) shows a bottom view of the frame of the first body.

[0038] Figure 9 (A) shows a bottom view of the cover component. Figure 9 (B) shows the front view of the cover component.

[0039] Figure 10 (A) shows a top view of the second component. Figure 10 (B) shows a side view of the second component. Figure 10 (C) shows a bottom view of the second component.

[0040] Figure 11 It is a schematic horizontal cross-sectional view of the buckle, showing the engagement state of the first fitting part of the first body and the second fitting part of the second body, as well as the engagement state of the first engaging part of the cover member and the second engaging part of the second body.

[0041] Figure 12 It is a schematic horizontal cross-sectional view of the buckle. The engagement state of the first and second engagement parts is maintained, and the engagement of the first engagement part and the second engagement part of the second body is released.

[0042] Figure 13 This is a schematic diagram illustrating the process of disengagement between the first engaging portion of the cover component and the second engaging portion of the second component. Figure 13 (A) shows the engagement state of the first and second engaging parts. Figure 13 (B) shows the disengaged state of the first and second engaging parts.

[0043] Figure 14 This is a schematic diagram illustrating the connection process between the first component and the second component. Figure 14 (A) shows the state in which the first engaging portion of the cover component and the second engaging portion of the second component are in contact. Figure 14 (B) shows a state in which the cover component is displaced relative to the first body (frame), causing the gap between the first fitting portion and the first engaging portion to increase. Figure 14 (C) shows the engagement state of the first engagement part and the second engagement part.

[0044] Figure 15 This is a top view of the buckle involved in the variation example.

[0045] Figure 16This is a partial cross-sectional view of the buckle involved in the modified example.

[0046] Figure 17 This is a partial cross-sectional view of the buckle involved in the modified example.

[0047] Figure 18 This is a partial cross-sectional view of the buckle involved in the modified example.

[0048] Figure 19 This is a schematic partial perspective view of the buckle involved in the variation example, and also shows a cross-section of the buckle along the transverse direction at the center of the buckle in the width direction.

[0049] Figure 20 This is a top view of the buckle according to another embodiment.

[0050] Figure 21 yes Figure 20 The shown is a center section view of the buckle along the dashed line XXI-XXI.

[0051] Figure 22 It is an explanatory diagram used to illustrate mechanical investigations.

[0052] Figure 23 yes Figure 20 The illustrated embodiment is a modified example of a buckle with a central cross-sectional view.

[0053] Explanation of reference numerals in the attached figures

[0054] 1-First component, 2-Second component, 8-Flat plate, 9-First retaining part, 11-First main body, 12-Cover component, 21-Second main body, 31-First fitting part, 32-Second fitting part, 41-First engaging part, 42-Second engaging part, 51-Left side plate, 51a-First recess, 52-Right side plate, 52a-Second recess, 55-Main plate, 61-Left guide rail, 62-Right guide rail, 65-Frame 66-First belt mounting part, 71-74-First to fourth protrusions, 81-84-First to fourth grooves, 85-Second belt mounting part, 86-Left side edge, 87-Right side edge, 91-Peripheral wall, 92-Annular rib, 93-Protrusion, 100-Buck, AX1-Magnetic shaft, AX2-Magnetic shaft, M1-First magnetic body, M2-Second magnetic body, LD-Transverse direction, VD-Up and down direction, WD-Width direction. Detailed Implementation

[0055] Hereinafter, various embodiments and features will be described with reference to the accompanying drawings. Those skilled in the art will be able to combine the various embodiments and / or features without excessive explanation, and will also understand the synergistic effects of such combinations. Repeated descriptions between embodiments are generally omitted. The accompanying drawings are primarily for the purpose of describing the invention and are simplified for ease of drawing.

[0056] Figure 1 This is a schematic perspective view of the buckle 100. Regarding the first component 1, the cover component 12 is shown separated from the first body 11 upwards by solid lines. The cover component 12 is shown by imaginary lines in the state of being installed on the first body 11. The first fitting portion 31 of the first component 1 and the second fitting portion 32 of the second component 2 are fitted together, and the first component 1 and the second component 2 are connected. Figure 2 It is a schematic partial perspective view of buckle 100, and also shows a cross section of buckle 100 along the transverse direction at the center of the width direction. Figure 3 This is a schematic partial perspective view of the first component 1, along with a cross-section of the first component 1 along the width direction. Figure 4 This is a top view of the buckle 100. Figure 5 This is a side view of buckle 100. Figure 6 yes Figure 4 A schematic cross-sectional view of buckle 100 at the dashed line VI-VI shown. Figure 7 yes Figure 4 The schematic end view of the buckle 100 at the dashed line VII-VII shown also includes the auxiliary protrusion, which is indicated by dashed lines. Figure 8 (A) shows a top view of the frame of the first body 11. Figure 8 (B) shows a bottom view of the frame of the first body 11. Figure 9 (A) shows a bottom view of the cover component 12. Figure 9 (B) shows the front view of the cover component 12. Figure 10 (A) shows a top view of the second component 2. Figure 10 (B) shows a side view of the second component 2. Figure 10 (C) shows a bottom view of the second component 2. Figure 11 This is a schematic horizontal cross-sectional view of the buckle 100, showing the engagement state of the first fitting portion 31 of the first body 11 and the second fitting portion 32 of the second body 21, as well as the engagement state of the first engaging portion 41 of the cover member 12 and the second engaging portion 42 of the second body 21. Figure 12 It is a schematic horizontal cross-sectional view of the buckle 100. The engagement state of the first engagement part 31 and the second engagement part 32 is maintained, and the engagement of the first locking part 41 and the second locking part 42 of the second body 21 is released. Figure 13 This is a schematic diagram showing the process of the engagement of the first engaging portion 41 of the cover component 12 and the second engaging portion 42 of the second component 2 being released. Figure 13 (A) shows the engaged state of the first engaging part 41 and the second engaging part 42. Figure 13 (B) shows the engagement and disengagement states of the first engaging part 41 and the second engaging part 42. Figure 14 This is a schematic diagram illustrating the connection process between the first component 1 and the second component 2. Figure 14(A) shows the state in which the first engaging portion 41 of the cover component 12 is in contact with the second engaging portion 42 of the second component 2. Figure 14 (B) shows a state in which the cover component 12 is displaced relative to the first body 11 (frame), causing the distance between the first fitting portion 31 and the first engaging portion 41 to increase. Figure 14 (C) shows the engagement state of the first engaging part 41 and the second engaging part 42. Figure 15 This is a top view of the buckle involved in the variation example. Figures 16 to 18 This is a partial cross-sectional view of the buckle involved in the modified example. Figure 19 This is a schematic partial perspective view of the buckle involved in the variation example, and also shows a cross-section of the buckle along the transverse direction at the center of the buckle in the width direction.

[0057] For ease of explanation, regarding buckle 100 or its constituent parts, refer to... Figure 1 The coordinates are shown. The vertical direction VD is set corresponding to the thickness direction of the buckle 100. The width direction WD is set corresponding to the width direction of the buckle 100. The horizontal direction LD is set corresponding to the connection direction of the strap connected by the buckle 100. The vertical direction VD, the width direction WD, and the horizontal direction LD are orthogonal to each other.

[0058] A first coordinate C1 is set for the first component 1 of the buckle 100, and a second coordinate C2 is set for the second component 2 of the buckle 100. The left-right direction of the first coordinate C1 (referring to the double-headed arrow between L and R) and the left-right direction of the second coordinate C2 (referring to the double-headed arrow between L and R) are set opposite. Regarding the double-headed arrow between L and R, L represents the left and R represents the right. The front-back direction of the first coordinate C1 (referring to the double-headed arrow between F and B) and the front-back direction of the second coordinate C2 (referring to the double-headed arrow between F and B) are set opposite. Regarding the double-headed arrow between F and B, F represents the front and B represents the back. Furthermore, when the first main body 11 is a frame, in the plane where the frame is disposed, the direction towards the inner space of the frame is called the inner side, and the direction away from the inner space of the frame is called the outer side.

[0059] The buckle 100 includes a first component 1 and a second component 2 capable of being connected based on magnetic engagement. Specifically, when a user positions one of the first component 1 and the second component 2 close to the other, a magnetic attraction is generated between the first component 1 and the second component 2, thereby automatically or semi-automatically connecting the first component 1 and the second component 2. The method for disengaging the first component 1 and the second component 2 will be described later.

[0060] The first component 1 includes: a first body 11; a cover component 12, which is mounted to the first body 11 in a laterally slidable manner; and a first magnetic body M1, which is fixed to the cover component 12. The first component 1 is typically an assembly constructed from three components. The second component 2 includes: a second body 21; and a second magnetic body M2, which is fixed to the second body 21. The second component 2 is typically an assembly constructed from two components. Based on this structure of the first component 1 and the second component 2, larger magnets can be used, which can improve the magnetic engagement force of the buckle 100.

[0061] Preferably, the first component 1 and the second component 2, except for the first magnetic body M1 and the second magnetic body M2, are constructed from resin injection-molded articles. That is, the first body 11, the cover component 12, and the second body 21 are all resin injection-molded articles. The first magnetic body M1 and the second magnetic body M2 are, for example, neodymium magnets. The first magnetic body M1 can be a disk-shaped magnet with an S pole on the upper side and an N pole on the lower side. The second magnetic body M2 can be a disk-shaped magnet with an S pole on the upper side and an N pole on the lower side. Preferably, the first magnetic body M1 and the second magnetic body M2 are magnets with the same composition and size, but this is not a limitation. The number of magnets provided in the first component 1 and the second component 2 is not limited to one. The method of fixing the magnets is arbitrary, and for its purpose, pressing, snap-fit ​​fixing, embedding molding, bonding, or any combination of the above methods can be used. The first magnetic body M1 and the second magnetic body M2 are preferably both magnets, in which case they can be referred to as the first magnet and the second magnet, respectively. Of course, it is not limited to this form; it is also possible to make only one of the first magnetic body M1 and the second magnetic body M2 a magnet, while the other is a non-magnetic magnetic body.

[0062] The first main body 11 includes or is composed of a (normally closed) frame 65. The frame 65 includes a first belt mounting portion 66 and a front frame portion 67 connected to the first belt mounting portion 66 from the front. The first belt mounting portion 66 includes three sides forming part of the frame 65, more specifically, a left side wall 66a, a right side wall 66b, and a connecting rod 66p, and also includes a belt winding rod 66q disposed within the frame 65. The front frame portion 67 is a frame portion formed by connecting the left side guide rail 61, the right side guide rail 62, and the first fitting portion 31. As will be explained later, the first fitting portion 31 can engage with the second fitting portion 32 of the second component 2. When the first fitting portion 31 and the second fitting portion 32 are engaged with each other, separation of the first component 1 and the second component 2 in the lateral direction LD is prevented.

[0063] The left guide rail 61 extends forward in a straight line from the first belt mounting portion 66. Similarly, the right guide rail 62 extends forward in a straight line from the first belt mounting portion 66. The left guide rail 61 and the right guide rail 62 are arranged parallel to each other, supporting the cover member 12 in a manner that allows it to reciprocate along the lateral LD. The left guide rail 61 includes: a proximal end 61a, which is connected to the first belt mounting portion 66; and a distal end 61b, which is connected to the first fitting portion 31. The right guide rail 62 includes: a proximal end 62a, which is connected to the first belt mounting portion 66; and a distal end 62b, which is connected to the first fitting portion 31.

[0064] The first fitting portion 31 connects the left guide rail 61 and the right guide rail 62 at a position forward away from the first mounting portion 66. Preferably, the first fitting portion 31 includes a rod extending between the distal end 61b of the left guide rail 61 and the distal end 62b of the right guide rail 62. This rod can extend linearly parallel to the width direction WD. The rod can have any cross-sectional shape, but preferably has a rear surface that extends rearward as it faces upward, thereby facilitating the insertion of the second fitting portion 32 (described later) into the female groove. Preferably, the first fitting portion 31 is offset upward more than the lower surfaces of the left guide rail 61 and the right guide rail 62, thereby suppressing the thickness when the first fitting portion 31 and the second fitting portion 32 (described later) are engaged.

[0065] The connecting rod 66p can extend along or parallel to the width direction WD to connect the rear end of the left side wall 66a and the rear end of the right side wall 66b. The banded rod 66q can extend along or parallel to the width direction WD to connect the left side wall 66a and the right side wall 66b at any position between the conical surface described later and the connecting rod 66p. A banded interlocking gap is formed between the connecting rod 66p and the banded rod 66q. The number of banded rods is not limited to one, but can be two or more.

[0066] The proximal end 61a of the left guide rail 61 is connected to the left side wall 66a. The proximal end 62a of the right guide rail 62 is connected to the right side wall 66b. The proximal end 61a of the left guide rail 61 can be connected to the inner wall surface of the left side wall 66a, and the proximal end 62a of the right guide rail 62 can be connected to the inner wall surface of the right side wall 66b. Thus, regardless of whether the cover component 12 is installed, an increase in the width of the buckle 100 can be avoided or suppressed.

[0067] The frame 65 may have a first inner wall surface region 65m that faces rearward and slopes to the left at the connection between the left side wall 66a and the left side guide rail 61, and may have a second inner wall surface region 65n that faces rearward and slopes to the right at the connection between the right side wall 66b and the right side guide rail 62 (see reference). Figure 8(A)). Thus, regardless of whether the cover component 12 is installed, the increase in the width of the buckle 100 can be avoided or suppressed. In addition, the first inner wall surface region 65m and the second inner wall surface region 65n form conical surfaces that increase in spacing as they face rearward.

[0068] The connection between the proximal end 61a of the left guide rail 61 and the inner wall surface of the left side wall 66a, and the connection between the proximal end 62a of the right guide rail 62 and the inner wall surface of the right side wall 66b, results in the left side wall 66a having a stopping surface 66m for stopping the cover component 12 (e.g., the left side plate 51 described later), and the right side wall 66b having a stopping surface 66n for stopping the cover component 12 (e.g., the right side plate 52 described later) (see reference). Figure 1 , Figure 8 (A) Furthermore, when the connection between the first component 1 and the second component 2 is released, the rope 6 is pulled diagonally upward, so the cover component 12 can be moved without colliding with the stopping surfaces 66m and 66n.

[0069] For the sake of clarity, the first fitting portion 31 and the first belt mounting portion 66 are arranged with a gap in the transverse LD direction. The left guide rail 61 and the right guide rail 62 are arranged with a gap in the width direction WD. As a result, the frame 65 has an internal space enclosed by the first fitting portion 31, the left guide rail 61, the right guide rail 62, and the first belt mounting portion 66. As can be seen from the above description, the left guide rail 61 is positioned to the right of the left side wall 66a (or closer to the center line L11 of the first body 11 (see reference)). Figure 8 The right guide rail 62 is offset to the left (or closer to the center line L11 of the first body 11) from the right side wall 66b. As a result, the frame 65 is wider at the first strap mounting portion 66 and narrower at the front frame portion 67. The cover member 12 is mounted in a manner that allows it to slide relative to the front frame portion 67, thereby avoiding or suppressing an increase in the width of the buckle 100 as the cover member 12 is mounted on the first body 11.

[0070] The cover component 12 includes a main plate 55, a left side plate 51, and a right side plate 52. Typically, the cover component 12 has a generally three-sided cross-section that opens downwards. The main plate 55 includes an upper surface 55a and a lower surface 55b. The upper surface 55a is a bare surface exposed over its entire area. Preferably, the left side plate 51 and the right side plate 52 are arranged facing each other at a distance spaced apart in the width direction WD, orthogonal to the lateral LD ​​and vertical VD directions, a distance that allows the user to grip the cover component 12 between their thumb and forefinger. This allows for the connection and release of the first component 1 and the second component 2 with an operation similar to a side release buckle.

[0071] The left side plate 51 is connected to the left edge of the main plate 55 and extends downward from there. The right side plate 52 is connected to the right edge of the main plate 55 and extends downward from there. The left side plate 51 and the right side plate 52 extend longer in the lateral direction LD than in the vertical direction VD. The left side plate 51 has a bare surface facing left. The right side plate 52 has a bare surface facing right. Preferably, in the lateral direction LD, the lengths of the left side plate 51 and the right side plate 52 are shorter than the length of the main plate 55, thereby improving the functionality and / or appearance of the buckle 100 as described later.

[0072] The mainboard 55 can include: a front portion 55r, which is positioned further forward than the left side panel 51 and the right side panel 52 in the lateral direction LD; a rear portion 55s, which is positioned further rearward than the left side panel 51 and the right side panel 52 in the lateral direction LD; and a middle portion 55t, which is located between the front and rear portions. Thus, the cover member 12 can cover a larger area of ​​the first main body 11. For example, the front portion 55r can completely or at least partially cover the first fitting portion 31 from above when the cover member 12 is mounted on the first main body 11, resulting in a cleaner appearance for the first component 1. Similarly, the rear portion 55s can partially cover the first mounting portion 66, achieving the same advantage.

[0073] With the first component 1 and the second component 2 connected, the cover component 12 is positioned to partially cover the second strap mounting portion 85 (described later) of the second main body 21. This effectively prevents foreign objects from getting stuck between the cover component 12 and the second component 2 (particularly the second strap mounting portion 85). Furthermore, it enhances the restriction of relative displacement between the first component 1 and the second component 2 in the vertical direction.

[0074] A rope mounting portion 7 may be provided on the cover component 12 for mounting a rope 6 that is pulled to allow the cover component 12 to slide relative to the first body 11. Typically, the rope mounting portion 7 is located on the main board 55, and in the example shown, it is located at the rear 55s of the main board 55. The rope mounting portion 7 may include: a rod 7a extending along the width direction WD; and an opening 7b adjacent to the front of the rod 7a. The rope 6 passes through the opening 7b and is wound around the rod 7a. By pulling the rope 6 rearward and diagonally upward, the cover component 12 is moved in the same direction by the rope. A first magnetic body M1 is provided on the cover component 12; therefore, by pulling the cover component 12 rearward, the first magnetic body M1 is also pulled rearward. As a result, as described later, the magnetic coupling between the first magnetic body M1 and the second magnetic body M2 is weakened, thereby enabling a smooth disconnection of the first component 1 and the second component 2.

[0075] like Figure 4As shown, the left side panel 51 may include a first recess 51a recessed to the right, and the right side panel 52 may include a second recess 52a recessed to the left. This makes it easier for the user to grip the buckle 100 with their fingers. In the example shown, the left side panel 51 includes a front inclined surface 57a, which extends away from the centerline L12 of the cover member 12 (see reference). Figure 9 The front inclined surface 57a extends forward at an angle (A); the rear inclined surface 57b extends forward at an angle close to the centerline L12 of the cover member 12; and the middle surface 57c extends laterally along the LD, connecting the front inclined surface 57a and the rear inclined surface 57b. When the cover member 12 is moved forward, the finger contacts the front inclined surface 57a, which improves the operability of the cover member 12. When the cover member 12 is moved backward, the finger contacts the rear inclined surface 57b, which improves the operability of the cover member 12. Furthermore, the front inclined surface 57a and the rear inclined surface 57b form conical surfaces that increase in spacing as they move toward the left.

[0076] The description of the left side plate 51 also applies to the right side plate 52. For the sake of clarity, the right side plate 52 includes: a front inclined surface 58a that extends forward at an incline away from the centerline L12 of the cover member 12; a rear inclined surface 58b that extends forward at an incline close to the centerline L12 of the cover member 12; and a middle surface 58c that extends laterally along the LD connecting the front inclined surface 58a and the rear inclined surface 58b. The front inclined surface 58a and the rear inclined surface 58b form tapered surfaces that increase in spacing as they move toward the right, thereby improving the operability of the cover member 12.

[0077] The left side panel 51 may include a left side surface 51b with a concave-convex surface, and the right side panel 52 may include a right side surface 52b with a concave-convex surface. Preferably, the concave-convex surface can be formed on the aforementioned intermediate surfaces 57c and 58c. The concave-convex surface functions as an anti-slip element for the user's fingers, thereby improving the operability of the cover component 12. However, it is not limited to this, but the concave-convex surface may be configured such that the raised strips extending parallel to the vertical direction VD are arranged along the horizontal direction LD (see reference). Figure 5 The number of protrusions varies depending on the size of the buckle 100, but is usually in the range of 3 to 10.

[0078] In some cases, the magnetic axis AX1 of the first magnetic body M1 (first magnet) can be disposed between the first recess 51a and the second recess 52a. Alternatively, the magnetic axis AX1 of the first magnetic body M1 (first magnet) can be disposed between the concave and convex surfaces of the left side plate 51 and the right side plate 52. The first recess 51a and the second recess 52a are disposed closer to the magnetic axis AX1 of the first magnetic body M1 (first magnet), so that the force applied by the user to the cover member 12 to disconnect the first component 1 and the second component 2 works more directly, making it easier to generate relative displacement between the first magnetic body M1 (first magnet) and the second magnetic body M2 (second magnet).

[0079] The first magnetic body M1 can be mechanically fixed to the cover component 12 (e.g., fitted) (but the use of adhesive is not excluded). In some cases, a first retaining part 9 for retaining the first magnetic body M1 is provided on the lower surface of the main board 55 (see reference). Figure 6 Preferably, the first retaining portion 9 includes a peripheral wall 91 surrounding the first magnetic body M1. An annular rib 92 for retaining the first magnetic body M1 within the peripheral wall may be provided on the inner wall surface of the peripheral wall 91. The annular rib 92 may be positioned such that it is offset upwards from the opening end of the peripheral wall. This results in the first magnetic body M1 being protected by the peripheral wall 91, effectively reducing the possibility of it falling off. The method of arranging the first magnetic body M1 within the peripheral wall 91 is arbitrary; for example, the first magnetic body M1 can be arranged within the peripheral wall 91 via an opening formed in the main board 55, and then a cover material can be fixed to the opening of the main board 55 by pressing or the like. Alternatively, the first magnetic body M1 can be passed through the annular rib 92 and pressed in and fixed within the peripheral wall 91. Optionally, the first retaining portion 9 may also have a protrusion 93 that protrudes downwards from the lower surface of the main board 55 to contact the upper surface of the first magnetic body M1. Therefore, the first magnetic body M1 can be positioned at a more appropriate height in the vertical direction VD.

[0080] On the lower surface of the main board 55, there are auxiliary protrusions 96 and 97 for stabilizing the sliding of the cover component 12 (see reference). Figure 9 , Figure 11 , Figure 12 In the width direction WD of the buckle 100, a left guide rail 61 is arranged between the auxiliary protrusion 96 and the left side plate 51 to limit the left and right displacement of the cover component 12. In the width direction WD of the buckle 100, a right guide rail 62 is arranged between the auxiliary protrusion 97 and the right side plate 52 to limit the left and right displacement of the cover component 12.

[0081] Cover component 12 has a first engaging portion 41 (see reference) Figure 2 , Figure 3 , Figure 6 and Figure 9As described later, the first engaging portion 41 can engage with the second engaging portion 42, and when the first engaging portion 41 and the second engaging portion 42 are engaged with each other, they can prevent the first component 1 and the second component 2 from separating in the vertical direction VD or along the vertical direction VD. The first engaging portion 41 is laterally disposed between the first fitting portion 31 and the first magnetic body M1, and the second engaging portion 42 is laterally disposed between the second fitting portion 32 and the second magnetic body M2, but is not limited thereto.

[0082] The first engaging portion 41 may be hook-shaped. The first engaging portion 41 includes a first hook head 41m and a first hook rod 41n (see reference). Figure 2 The first hook head 41m includes: a first engaging surface 41a, which is oriented upwards orthogonal to the vertical direction VD; and a first guiding surface 41b, which gradually extends downwards from the front end of the first engaging surface 41a toward the rear. The first hook 41n is included in a portion of the first retaining portion 9 (e.g., peripheral wall 91). In other words, the first retaining portion 9 (e.g., peripheral wall 91) functions as the first hook 41n. This allows for simplification or miniaturization of the structure of the cover member 12. The first hook head 41m is connected to the first retaining portion 9 (e.g., peripheral wall 91) at a position downwards away from the lower surface of the main plate 55, and can protrude forward from the first retaining portion 9 (e.g., peripheral wall 91) along the transverse LD.

[0083] Reference Figure 1 , Figure 3 , Figure 7 The installation of the cover component 12 relative to the first body 11 will be described. Based on Figure 1 It is understood that the cover component 12 is installed on the first body 11 by means of a snap-fit ​​connection (specifically, the left guide rail 61 and the right guide rail 62). After the cover component 12 is installed on the first body 11, it is difficult to remove the cover component 12 from the first body 11 manually, and a special clamp is required. Therefore, during the use of the buckle 100, the cover component 12 will not be accidentally removed from the first body 11, or it will be almost impossible. When the cover component 12 has a rope mounting part 7, the rope can be installed in the rope mounting part 7 before the cover component 12 is installed on the first body 11, or the rope can be installed in the rope mounting part 7 after the cover component 12 is installed on the first body 11, thereby increasing the flexibility of the manufacturing process of the buckle 100. In addition, the rope can be easily replaced.

[0084] like Figure 3 , Figure 7As shown, regarding the first main body 11, a first protrusion 71 is provided at the upper end of its left guide rail 61, protruding away from the center line L11 of the first main body 11. A second protrusion 72 is provided at the upper end of its right guide rail 62, also protruding away from the center line L11 of the first main body 11. Regarding the cover component 12, a third protrusion 73 is provided on its left side plate 51, protruding towards the center line L12 of the cover component 12. A fourth protrusion 74 is provided on its right side plate 52, also protruding towards the center line L12 of the cover component 12. Furthermore, the first protrusion 71 and the second protrusion 72 are mirror images of each other, as are the third protrusion 73 and the fourth protrusion 74.

[0085] A first groove 81, opening to the right, is formed between the third protrusion 73 and the motherboard 55 to allow the first protrusion 71 to be inserted. A second groove 82, opening to the left, is formed between the fourth protrusion 74 and the motherboard 55 to allow the second protrusion 72 to be inserted. A third groove 83, opening to the left, is provided below the first protrusion 71 to allow the third protrusion 73 to be inserted. A fourth groove 84, opening to the right, is provided below the second protrusion 72 to allow the fourth protrusion 74 to be inserted. The first groove 81 and the second groove 82 each include an open end on the front and an open end on the rear. The third groove 83 and the fourth groove 84 each include a closed end on the front and a closed end on the rear. The third groove 83 and the fourth groove 84 are open at the bottom, but are not limited thereto.

[0086] During the engagement of the protrusions and grooves described above, the left side plate 51 and the right side plate 52 deform away from the centerline L12 of the cover member 12, and then return to their original shape synchronously with the engagement of the protrusions and grooves. To allow the cover member 12 to be smoothly installed on the left side guide rail 61 and the right side guide rail 62, the first protrusion 71 may have a first downwardly inclined surface 71a, and the second protrusion 72 may have a second downwardly inclined surface 72a. When the cover member 12 is installed on the first body 11, the third protrusion 73 moves downward along the first downwardly inclined surface 71a and is then inserted into the third groove 83. The fourth protrusion 74 moves downward along the second downwardly inclined surface 72a and is then inserted into the fourth groove 84. Additionally, the first protrusion 71 is inserted into the first groove 81, and the second protrusion 72 is inserted into the second groove 82. For the same reason, as an addition or alternative, the lower surface of the third protrusion 73 and the lower surface of the fourth protrusion 74 may also be inclined surfaces.

[0087] Further reference Figure 11It can be seen that the third groove 83 can be configured as a cutout formed on the left side of the left guide rail 61, open on the left and bottom (resulting in the formation of the first protrusion 71). Similarly, the fourth groove 84 can be configured as a cutout formed on the right side of the right guide rail 62, open on the right and bottom (resulting in the formation of the second protrusion 72). In this case, the sliding range of the cover member 12 can be easily set based on the front and rear lengths of the cutouts.

[0088] The end position of the cover component 12 in the first body 11 (transversely LD) can be determined by the collision of the third protrusion 73 and the fourth protrusion 74 with the closed ends of the third groove 83 and the fourth groove 84. Alternatively, the rearmost position of the cover component 12 in the first body 11 can be determined by the collision of the left side plate 51 with the aforementioned stop surface 66m and / or the collision of the right side plate 52 with the aforementioned stop surface 66n. In this case, mechanical deterioration caused by the collision of the third protrusion 73 and the fourth protrusion 74 with the closed ends of the third groove 83 and the fourth groove 84 can be avoided or suppressed. Alternatively, the sliding range of the cover component 12 can also be set using the first protrusion 71 and the second protrusion 72 as an addition or alternative to the third protrusion 73 and the fourth protrusion 74.

[0089] With the cover component 12 mounted on the first body 11, the left side plate 51 is positioned adjacent to the left side of the left side guide rail 61, and the right side plate 52 is positioned adjacent to the right side of the right side guide rail 62. In this configuration, the left side surface 51b of the left side plate 51 and the right side surface 52b of the right side plate 52 are both exposed. This allows the user to hold the cover component 12 (particularly the left side plate 51 and the right side plate 52) between their thumb and forefinger, enabling them to perform a typical connection release operation similar to a side-opening buckle.

[0090] Next, the second component 2 will be described. The second body 21 has a second fitting portion 32 and a second engaging portion 42 on its upper surface side. The second body 21 has a second magnetic body M2 on its lower surface side, and in particular, has a second holding portion 9' (see reference) for holding the second magnetic body M2. Figure 2 The positional relationship of the second fitting portion 32, the second engaging portion 42, and the second magnetic body M2 in the second main body 21 can be varied, but it is preferable that the second engaging portion 42 is arranged in the lateral LD ​​at a position forward of the second fitting portion 32. It is also preferable that the second magnetic body M2 is arranged in the lateral LD ​​at a position forward of the second engaging portion 42. Thus, as will be described later, the first component 1 and the second component 2 can be smoothly and automatically connected based on the magnetic engagement of the first magnetic body M1 and the second magnetic body M2.

[0091] The second main body 21 includes a flat plate portion 8 and a second belt mounting portion 85. The flat plate portion 8 is disposed in front of the second belt mounting portion 85 and is connected to the second belt mounting portion 85 from the front. The width of the flat plate portion 8 is narrower than that of the second belt mounting portion 85, which enables the miniaturization of the second component 2.

[0092] The flat plate 8 includes an upper surface 8a and a lower surface 8b (see reference). Figure 10 (B)). The second fitting portion 32 and the second engaging portion 42 may be provided on the upper surface 8a side of the flat plate portion 8. The second retaining portion 9' may be provided on the lower surface 8b side of the flat plate portion 8. The second retaining portion 9' may be constructed in the same or different manner as the first retaining portion 9, and generally includes at least a peripheral wall 91 like the first retaining portion 9, and optionally also includes an annular rib. The description of the first retaining portion 9 applies to the second retaining portion 9', and repeated descriptions are omitted.

[0093] The flat plate portion 8 may include a left edge 86, a right edge 87, and a (forwardly projecting) front edge 88. With the left edge 86 and right edge 87 extending parallel to the transverse LD, the flat plate portion 8 has a certain width except for its front end. When the first component 1 and the second component 2 are connected, the flat plate portion 8 can be disposed within the frame 65, more specifically, between the left guide rail 61 and the right guide rail 62, thereby suppressing an increase in the thickness of the buckle 100. When the first component 1 and the second component 2 are connected, the left edge 86 of the flat plate portion 8 is adjacent to the left guide rail 61, and the right edge 87 is adjacent to the right guide rail 62.

[0094] The second belt mounting section 85 includes: a left side wall 85a; a right side wall 85b; a connecting rod 85p connecting the left side wall 85a and the right side wall 85b; and a front wall 85q extending parallel to the connecting rod 85p. The belt is wound around the connecting rod 85p, with one end of the belt passing between the connecting rod 85p and the front wall 85q.

[0095] The second engaging part 42 may be a hook that rises upward from the upper surface 8a of the flat plate part 8 (see reference). Figure 2 , Figure 6 The second engaging part 42 includes a second hook head 42m and a second hook rod 42n (see reference). Figure 2The second hook head 42m protrudes forward from the upper end of the second hook rod 42n. The second hook head 42m includes: a second engaging surface 42a, which is oriented downward in a manner orthogonal to the vertical direction VD; and a second guide surface 42b, which gradually extends upward from the front end of the second engaging surface 42a toward the rear. The second hook rod 42n stands upright from the upper surface 8a of the flat plate portion 8, preferably standing upright with a slight forward inclination. Preferably, the hook portion may include: a top surface 42c; and an inclined surface 42d, which extends downward from the top surface 42c toward the rear. This facilitates smooth engagement of the first engaging portion 31 and the second engaging portion 32.

[0096] A through hole H1, penetrating the flat plate portion 8, can be formed directly below the second hook head 42m. The second engaging surface 42a of the second hook head 42m is located directly above the through hole H1, thus allowing the second engaging surface 42a to be formed without the need for a sliding core. The front-to-back width of the through hole H1 can gradually decrease as it faces upwards, but is not limited thereto. To prevent waste material from entering the through hole H1, it is preferable to provide wall portions on the left and right sides of the second hook head 42m, connecting the second hook head 42m and the flat plate portion 8.

[0097] With the aid of the first guide surface 41b of the first engaging portion 41 and the second guide surface 42b of the second engaging portion 42, even if the first magnetic body M1 and the second magnetic body M2 collide during their approach in the vertical direction VD, the first engaging portion 41 will slide on the second guide surface 42b, or the second engaging portion 42 will slide on the first guide surface 41b. This ensures smooth engagement of the first engaging portion 41 and the second engaging portion 42. In the example shown, both the first engaging portion 41 and the second engaging portion 42 are hook-shaped, but this is not the only example.

[0098] The second engaging portion 32 can be a female groove formed by arranging the second engaging portion 42 and the second belt mounting portion 85 (in particular, the front wall 85q) at intervals in the transverse LD. Alternatively, the front-to-back width of the female groove gradually decreases as it approaches the bottom surface. Furthermore, the interval between the second engaging portion 42 and the front wall 85q in the transverse LD is appropriately determined based on the cross-sectional dimensions (thickness) of the first engaging portion 31, particularly the rod portion, as described above. In order to allow the first engaging portion 31 (male portion) to be smoothly inserted into the second engaging portion 32 (female groove), the second engaging portion 42 is made into a hook portion as described above, and an inclined surface 42d can be formed in the hook portion.

[0099] Based on the magnetic engagement of the first magnetic body M1 and the second magnetic body M2, the first fitting portion 31 and the second fitting portion 32 can engage with each other. Furthermore, the first engaging portion 41 and the second engaging portion 42 can engage with each other, typically engaging synchronously with the engagement of the first fitting portion 31 and the second fitting portion 32. For example, to ensure smooth sliding of the cover component 12, the first magnetic body M1 (typically a first magnet) and the second magnetic body M2 (typically a second magnet) each have a diameter in the range of 5 mm to 25 mm, preferably in the range of 7 mm to 15 mm. Additionally, in the first component 1, the first magnetic body M1 is disposed on the lower side, and in the second component 2, the second magnetic body M2 is disposed on the lower side, thereby also concealing the magnetic body (or magnet) from the outside. When only one of the first magnetic body and the second magnetic body is a magnet, the magnetic body may differ from the magnet in size and / or number.

[0100] In this embodiment, the cover member 12 is installed on the first body 11 such that it covers the first body 11 from above. This facilitates the simplification of disconnecting the first member 1 and the second member 2 of the buckle 100. Furthermore, since the cover member 12 covers the first body 11 from above, it can be easily accessed from the outside, and in particular, the user can easily operate the cover member 12 directly with their own fingers.

[0101] Exemplarily, it is possible to avoid accidental disconnection of the first component 1 and the second component 2, and to facilitate the simplification of disconnection. One reason for this is that the magnetic attraction generated between the first magnetic body M1 and the second magnetic body M2 is sufficient to suppress accidental disconnection of the first and second components. That is, even with the above-described features, accidental disconnection of the first component 1 and the second component 2 is not caused, or is almost not caused, thus avoiding such disadvantages and achieving the advantage of simplifying the disconnection of the first component 1 and the second component 2.

[0102] To further illustrate the various features described above, the method for releasing the connection between the first component 1 and the second component 2 will be explained. By pulling the cord 6, which is attached to the cover component 12, backward and diagonally upward, the user moves the first engaging portion 41 away from the second engaging portion 42 on the upper surface 8a of the flat plate portion 8, thereby releasing the engagement between the first engaging portion 41 and the second engaging portion 42. Simultaneously, the first magnetic body M1 moves away from the second magnetic body M2 (in the case where the first magnetic body M1 and the second magnetic body M2 are a first magnet and a second magnet, the magnetic axis AX1 of the first magnet moves away from the magnetic axis AX2 of the second magnet), weakening the magnetic coupling between them. Therefore, based on the operation of pulling the cord 6 diagonally upward, the first engaging portion 31 (e.g., the male portion) retracts upward from the second engaging portion 32 (e.g., the female portion), releasing the engagement between them. The engagement and disengagement of the first engaging portion 31 and the second engaging portion 32 occur after the engagement and disengagement of the first engaging portion 41 and the second engaging portion 42, thereby enabling the smooth disconnection of the connection between the first component 1 and the second component 2.

[0103] Figure 11 and Figure 12 As the cover component 12 moves rearward, the first engaging portion 41 moves correspondingly away from the second engaging portion 42, thereby disengaging the first engaging portion 41 and the second engaging portion 42. The first magnetic body M1 moves laterally along LD within the frame space of the frame 65. Simultaneously with the displacement of the cover component 12, the third protrusion 73 moves rearward within the third groove 83, and the fourth protrusion 74 moves rearward within the fourth groove 84. Figure 12 In the middle, the cover component 12 is located at the rear end, so the left side plate 51 collides with the left side stop surface 66m, and the right side plate 52 collides with the right side stop surface 66n. When the rope 6 is operated to move the cover component 12 to disengage the connection between the first component 1 and the second component 2, the left side plate 51 will not collide with the left side stop surface 66m, and similarly, the right side plate 52 will not collide with the right side stop surface 66n.

[0104] Figure 13 (A) and Figure 13 (B) shows that as the cover member 12 moves rearward, the first engaging portion 41 moves accordingly away from the second engaging portion 42, and shows that the magnetic axis AX1 of the first magnetic body M1 (first magnet) moves away from the magnetic axis AX2 of the second magnetic body M2 (second magnet). That is, at this time, the magnetic coupling between the first magnetic body M1 and the second magnetic body M2 (first magnet and second magnet) weakens, and the upward vector component Vec1 contained in the force of pulling the rope 6 (refer to) Figure 13(B) By pulling the first engaging part 31 out from the second engaging part 32, the engagement between the two can be released. When the second engaging part 42 is provided with an inclined surface 42d, the engagement between the first engaging part 31 and the second engaging part 32 can be released more smoothly.

[0105] In this embodiment, instead of pulling the rope 6 diagonally upwards, the user can hold the cover component 12 (preferably its left side plate 51 and right side plate 52) with their thumb and forefinger in the width direction and pull the cover component 12 diagonally upwards to disengage the connection between the first component 1 and the second component 2. This operation includes the following steps: overcoming the magnetic engagement of the first magnetic body M1 and the second magnetic body M2, causing the cover component 12 to slide relative to the first body 11. In this case, the cover component 12 is pulled by the fingers, thereby moving the first engaging portion 41 on the upper surface 8a of the flat plate portion 8 away from the second engaging portion 42, thereby disengaging the engagement between the first engaging portion 41 and the second engaging portion 42. At the same time, the first magnetic body M1 moves away from the second magnetic body M2, and the magnetic attraction between them gradually decreases. Therefore, based on the above operation of the cover component 12, the first engaging portion 31 is retracted upwards from the second engaging portion 32, and the engagement between the first engaging portion 31 and the second engaging portion 32 is disengaged. Similar to the case of the pull rope, the engagement and disengagement of the first engaging part 31 and the second engaging part 32 occur after the engagement and disengagement of the first engaging part 41 and the second engaging part 42, so the first component 1 and the second component 2 can be smoothly disconnected.

[0106] For the sake of caution, the connection process of the first component 1 and the second component 2 will be described. When the first component 1 and the second component 2 are arranged close together, the first magnetic body M1 of the first component 1 (e.g., a magnet with an N pole on the lower side) and the second magnetic body M2 of the second component 2 (e.g., a magnet with an S pole on the upper side) are magnetically coupled, causing the first component 1 and the second component 2 to move and overlap in the vertical direction VD. For ease of explanation, it is assumed that the second component 2 is stationary and the first component 1 moves toward the second component 2, but in reality, the two move closer to each other, and are not limited to the case of moving parallel to the vertical direction VD.

[0107] exist Figure 14 At the moment shown in (A), the first engaging portion 31 (male part) begins to insert into the second engaging portion 32 (female part), but this is hindered by the collision between the first engaging portion 41 and the second engaging portion 42. Based on the magnetic coupling of the first magnetic body M1 and the second magnetic body M2, the first engaging portion 41 descends on the second guide surface 42b of the second engaging portion 42, resulting in the first engaging portion 41 (similarly, the cover part 12) moving away from the first engaging portion 31 of the first body 11 (or closer to the magnetic axis AX1 of the first magnetic body M1 (first magnet)) (see reference). Figure 14(B)). By retracting the cover member 12, the first engaging portion 41 completes its descent on the second guide surface 42b, reaching a position where it can engage with the second engaging portion 42. Then, the magnetic axis AX1 of the first magnetic body M1 (first magnet) of the cover member 12 advances towards the magnetic axis AX2 of the second magnetic body M2 (second magnet), and correspondingly, the first engaging portion 41 (similarly, the cover member 12) moves towards the first fitting portion 31 of the first body 11 (or away from the magnetic axis AX1 of the first magnetic body M1 (first magnet)) (see reference). Figure 14 (C) Thus, the first engaging surface 41a of the first engaging portion 41 and the second engaging surface 42a of the second engaging portion 42 face or contact each other, and the engagement of the first engaging portion 41 and the second engaging portion 42 is completed. Shortly before or approximately simultaneously with the completion of the engagement of the first engaging portion 41 and the second engaging portion 42, the first fitting portion 31 and the second fitting portion 32 complete the fitting. Furthermore, in the state where the first component 1 and the second component 2 are connected, the first engaging surface 41a and the second engaging surface 42a do not necessarily need to contact.

[0108] In the case where only one of the first magnetic body M1 and the second magnetic body M2 is a magnet, in order to achieve Figure 14 The additional magnetic coupling component is preferably provided for the automatic engagement of the first engaging portion 41 and the second engaging portion 42 of (C). For example, magnets M3 and M4 that can be magnetically engaged in the transverse LD can be provided in the first engaging portion 41 and the second engaging portion 42 respectively (see reference). Figure 19 Magnets M3 and M4 can be embedded in the first engaging portion 41 and the second engaging portion 42 by embedding, but are not limited thereto; they can also be fixed by fitting or bonding. In this configuration, the buckle 100 contains a total of three magnets. Of course, in the configuration where both the first magnetic body M1 and the second magnetic body M2 are magnets, magnets M3 and M4 can also be provided in the first component 1 and the second component 2 to strengthen the magnetic connection in the transverse LD direction.

[0109] Alternatively, the first magnetic body M1 can be a magnet, and a magnetic body (other than the first magnetic body M1 and the second magnetic body M2) can be embedded in the second engaging portion 42, thereby generating magnetic coupling between the first magnetic body M1 and the second engaging portion 42. In this configuration, the buckle 100 contains a total of three magnetic bodies. That is, the first component 1 includes magnets associated with the vertical direction VD and the horizontal direction LD. The second component 2 includes a magnetic body (non-magnetic) associated with the vertical direction VD and a magnetic body associated with the horizontal direction LD. The magnetic body of the second component 2 can be a magnet.

[0110] For the sake of caution, further explanation is provided: Corresponding to the magnetic engagement of the first and second magnets, the cover member 12 slides forward relative to the first body 11, engaging the first engaging portion 41 with the second engaging portion 42. Then, the cover member 12 slides in the opposite direction, disengaging the first engaging portion 41 from the second engaging portion 42. During the connection of the first component 1 and the second component 2, the cover member 12 moves in the opposite direction as described above, and then moves forward.

[0111] like Figure 15 As shown, a configuration is also envisioned in which the buckle 100, and particularly the cover member 12, does not have a cord mounting portion 7. Figure 16 As shown, the following configuration is also envisioned: When the first component 1 and the second component 2 are connected, the magnetic axis AX1 of the first magnetic body M1 (first magnet) and the magnetic axis AX2 of the second magnetic body M2 (second magnet) are not coaxial; the former is positioned further away from the second engaging portion 42 than the latter. Furthermore, in Figure 17 In another example shown, since the magnetic axis AX1 of the first magnetic body M1 (first magnet) moves toward the magnetic axis AX2 of the second magnetic body M2 (second magnet), there is a possibility that the engagement between the first engaging portion 41 and the second engaging portion 42 may be disengaged or weakened. Therefore, for simplicity, it is preferable that, in the state where the first component 1 and the second component 2 are connected, the magnetic axis AX1 of the first magnetic body M1 (first magnet) and the magnetic axis AX2 of the second magnetic body M2 (second magnet) are completely or substantially coaxial. "Substantially coaxial" means that the distance between the two magnetic axes is 0.6 mm or less or 0.4 mm or less.

[0112] like Figure 18 As shown, the first fitting part 31 of the first body 11 can also be configured as a female groove, and the second fitting part 32 of the second body 21 can be configured as a male part.

[0113] Reference Figures 20 to 22 Another implementation method will be described below. Figure 20 This is a top view of the buckle 100. Figure 21 yes Figure 20 The center sectional view of buckle 100 shown. Figure 22 It is an explanatory diagram used to illustrate mechanical investigations. Figure 20 and Figure 21 The embodiments shown also have the same features as the embodiments described above and can achieve the same effects, so repeated descriptions are omitted.

[0114] First, refer to Figure 22 right Figure 6 The potential problems with the buckle 100 shown are explained. Figure 22 The buckle shown is Figure 6The buckle shown is the same. Assume a large separating force FC is instantaneously applied to the first component 1 and the second component 2. At this time, in the first component, a force point P1, a fulcrum P2, and an action point P3 can be defined. It can be envisioned that the force applied to the force point P1 contains a downward force vector, and the force generated at the action point contains an upward force vector. In this case, the cover component 12 may lift off the second body 21, resulting in a gap SP between them. Such a gap SP weakens the magnetic engagement of the first magnet M1 and the second magnet M2, potentially causing the connection between the first component 1 and the second component 2 to disengage. According to... Figure 20 and Figure 21 The embodiments shown have the features described below, which can avoid or suppress such accidental disconnection.

[0115] That is, in Figure 20 and Figure 21 In the illustrated embodiment, the cover component 12 further includes a third engaging portion 43, which is positioned laterally differently from the first engaging portion 41. The second body 21 also includes a fourth engaging portion 44 capable of engaging with the third engaging portion 43. According to this feature, even if an instantaneous separation force is applied to the first component 1 and the second component 2, it is possible to prevent the cover component 12 from moving in a tilted-up (or rolled-up) manner from the second body 21, thus facilitating the maintenance of the first component 1 and the second component 2 in a connected state through magnetic engagement.

[0116] Preferably, the engagement timing and / or depth of the third engaging portion 43 and the fourth engaging portion 44 are the same as the engagement timing and / or depth of the first engaging portion 41 and the second engaging portion 42, but are not limited thereto. The third engaging portion 43 and the fourth engaging portion 44 may also be hook-shaped like the first engaging portion 41 and the second engaging portion 42, and each includes a hook head and a hook shank, but are not limited to this shape. The lateral positional relationship between the first engaging portion and the third engaging portion can be reversed, as can that between the second engaging portion and the fourth engaging portion.

[0117] Preferably, the third engaging portion 43 and the fourth engaging portion 44 are positioned laterally away from the lateral engaging positions of the first engaging portion 41 and the second engaging portion 42. Thus, the first engaging portion 41 and the third engaging portion 43 can be positioned such that the first magnet M1 is located between them laterally. Similarly, the second engaging portion 42 and the fourth engaging portion 44 can be positioned such that the second magnet M2 is located between them laterally. Preferably, as shown in the example figure, the third engaging portion 43 is positioned closer to the rear end of the cover member 12 than the first engaging portion 31, the first engaging portion 41, and / or the first magnet M1. The fourth engaging portion 44 is positioned closer to the front end of the second body 21 than the second engaging portion 32, the second engaging portion 42, and / or the second magnet M2. More preferably, the third engaging portion 43 may have a third hook head 43m that protrudes laterally from the rear wall portion 12r of the cover member 12. The fourth engaging part 44 may have a fourth hook head 44m that protrudes laterally toward the front end of the second body 21.

[0118] Furthermore, the first magnet M1 is arranged in the same plane (orthogonal to the magnetic axis AX1) as the first hook head 41m and the third hook head 43m, but this positional relationship should not be considered a limitation. In contrast, the second magnet M2 is not arranged in the same plane (orthogonal to the magnetic axis AX2) as the second hook head 42m and the fourth hook head 44m, but this positional relationship should not be considered a limitation either.

[0119] The third engaging portion 43 has a third hook head 43m, which protrudes laterally in the same direction as the first hook head 41m of the first engaging portion 41. Similarly, the fourth engaging portion 44 has a fourth hook head 44m, which protrudes laterally in the same direction as the second hook head 42m of the second engaging portion 42. To avoid complicating the construction of the first component 1 and the second component 2 (or the forming mold), the third hook head 43m may have a third engaging surface 43a that is coplanar with the first engaging surface 41a, and the fourth hook head 44m may have a fourth engaging surface 44a that is coplanar with the second engaging surface 42a. Alternatively, the third engaging portion 43 may have a third guiding surface 43b with a surface shape consistent with the first guiding surface 41b, and the fourth engaging portion 44 may have a fourth guiding surface 44b with a surface shape consistent with the second guiding surface 42b. Thus, it is preferable that the third hook head 43m and the fourth hook head 44m are the same as the first hook head 41m and the second hook head 42m in shape and / or size, but not limited thereto.

[0120] The engagement and disengagement methods of the third engaging part 43 and the fourth engaging part 44 are as follows: Figure 13 and Figure 14 The engagement and disengagement methods of the first engaging part 41 and the second engaging part 42 shown are the same, so the above illustrations and descriptions are omitted.

[0121] Reference Figure 23 Another variation will be explained. For example... Figure 23 As shown, it is able to Figure 20 and Figure 21 The third engaging portion 43 shown is provided as the first engaging portion 41 of the cover component 12, and will... Figure 20 and Figure 21 The fourth engaging portion 44 shown is provided as the second engaging portion 42 of the second body 21. More specifically, in Figure 20 and Figure 21 In the illustrated configuration, the first and second engaging parts can also be omitted, while the third and fourth engaging parts are retained. For the sake of clarity, the following explanation is provided: Figure 23 As shown, the first engaging portion 41 is positioned laterally closer to the rear end of the cover member 12 than the first engaging portion 31 and the first magnetic body M1, and the second engaging portion 42 is positioned laterally closer to the front end of the second body 21 than the second engaging portion 32 and the second magnetic body M2.

[0122] This specification also discloses the following invention, which facilitates easier assembly of buckles.

[0123] (Note 1)

[0124] A buckle includes a first component and a second component capable of being connected based on magnetic engagement, wherein...

[0125] The first component includes: a first body including a first fitting portion; a cover component slidably mounted to the first body and including a first engaging portion; and a first magnet fixed to the cover component.

[0126] The second component includes: a second body; and a second magnetic body fixed to the second body. The second body includes: a second fitting portion capable of fitting with the first fitting portion; and a second engaging portion capable of engaging with the first engaging portion.

[0127] At least one of the first magnetic body and the second magnetic body is a magnet.

[0128] Based on the magnetic bonding of the first magnetic body and the second magnetic body, the first fitting portion and the second fitting portion can fit together, and the fitting of the first fitting portion and the second fitting portion can prevent the first component and the second component from separating in the lateral direction.

[0129] The first engaging portion and the second engaging portion can engage with each other, and the engagement of the first engaging portion and the second engaging portion can prevent the first component and the second component from separating in a vertical direction orthogonal to the transverse direction or along the vertical direction.

[0130] The first main body includes a frame, which includes a first fitting part, a left guide rail, a right guide rail, and a first mounting part.

[0131] The cover component is slidably mounted on the left and right guide rails.

[0132] (Note 2)

[0133] In Appendix 1, the first magnetic body is capable of lateral displacement within the frame space of the frame.

[0134] When the cover component 12 has a rope mounting part 7, the timing of mounting the rope to the rope mounting part 7 can be freely selected.

[0135] Based on the above teachings, those skilled in the art can make various modifications to the various embodiments and features. Reference numerals in the claims are for reference only and are not intended to limit the interpretation of the claims. Although not shown in the figures, the configuration of the left side plate 51 adjacent to the right side of the left side guide rail 61 and the right side plate 52 adjacent to the left side of the right side guide rail 62 is also within the scope of contemplation.

Claims

1. A buckle (100) comprising a first component (1) and a second component (2) capable of being connected based on magnetic engagement, characterized in that: The first component (1) includes: a first body (11) which includes a first fitting portion (31); a cover component (12) which is mounted on the first body (11) in a laterally slidable manner and includes a first engaging portion (41); and a first magnet (M1) which is fixed to the cover component (12). The second component (2) includes: a second body (21); and a second magnetic body (M2) fixed to the second body (21). The second body (21) includes: a second fitting portion (32) capable of fitting with the first fitting portion (31); and a second engaging portion (42) capable of engaging with the first engaging portion (41). At least one of the first magnetic body (M1) and the second magnetic body (M2) is a magnet. Based on the magnetic bonding of the first magnetic body (M1) and the second magnetic body (M2), the first fitting part (31) and the second fitting part (32) can fit together, and the fitting of the first fitting part (31) and the second fitting part (32) can prevent the separation of the first component (1) and the second component (2) in the lateral direction. The first engaging part (41) and the second engaging part (42) can engage with each other, and the engagement of the first engaging part (41) and the second engaging part (42) can prevent the first component (1) and the second component (2) from separating in the vertical direction orthogonal to the transverse direction or along the vertical direction. The cover component (12) is installed on the first body (11) in such a way that it covers the first body (11) from above.

2. The buckle according to claim 1, characterized in that: The cover component (12) includes a main board (55), a left side panel (51) and a right side panel (52), the left side panel (51) and the right side panel (52) being arranged facing each other at a distance spaced apart in a width direction orthogonal to the lateral and vertical directions, such distance just allows the user to hold the cover component (12) between the thumb and forefinger.

3. The buckle according to claim 2, characterized in that: The left side plate (51) includes a first recess (51a) recessed to the right and / or includes a left side surface with concave and convex surfaces. The right side plate (52) includes a second recess (52a) that is recessed to the left, and / or includes a right side surface with a concave-convex surface.

4. The buckle according to claim 3, characterized in that: The first magnetic body (M1) is the first magnet. The left side plate (51) includes a first recess (51a) recessed to the right, and the right side plate (52) includes a second recess (52a) recessed to the left. The magnetic axis (AX1) of the first magnet can be disposed between the first recess (51a) and the second recess (52a).

5. The buckle according to claim 3, characterized in that: The first magnetic body (M1) is the first magnet. The left side plate (51) includes a left side surface (51b) with a concave-convex surface, and the right side plate (52) includes a right side surface (52b) with a concave-convex surface. The magnetic axis (AX1) of the first magnet can be disposed between the concave-convex surface of the left side plate (51) and the concave-convex surface of the right side plate (52).

6. The buckle according to any one of claims 1 to 5, characterized in that: The first main body (11) includes a frame (65), which includes the first fitting part (31), the left guide rail (61), the right guide rail (62) and the first belt mounting part (66).

7. The buckle according to claim 6, characterized in that: The cover component (12) is mounted on the left guide rail (61) and the right guide rail (62) by means of a snap-fit ​​connection.

8. The buckle according to claim 6, characterized in that: A first protrusion (71) with a first downward inclined surface (71a) is provided at the upper end of the left guide rail (61), a second protrusion (72) with a second downward inclined surface (72a) is provided at the upper end of the right guide rail (62), a third protrusion (73) is provided on the left side plate (51), and a fourth protrusion (74) is provided on the right side plate (52). A first groove (81) for inserting the first protrusion (71) is formed between the third protrusion (73) and the main board (55), and a second groove (82) for inserting the second protrusion (72) is provided between the fourth protrusion (74) and the main board (55). A third groove (83) is provided below the first protrusion (71), and a fourth groove (84) is provided below the second protrusion (72). When the cover component (12) is installed on the first body (11), the third protrusion (73) moves downward along the first downward inclined surface (71a), the fourth protrusion (74) moves downward along the second downward inclined surface (72a), and finally, the first protrusion (71) is inserted into the first groove (81), the second protrusion (72) is inserted into the second groove (82), the third protrusion (73) is inserted into the third groove (83), and the fourth protrusion (74) is inserted into the fourth groove (84).

9. The buckle according to claim 6, characterized in that: The left side plate (51) is arranged adjacent to the left side of the left side guide rail (61), and the right side plate (52) is arranged adjacent to the right side of the right side guide rail (62).

10. The buckle according to claim 6, characterized in that: The second main body (21) includes a flat plate (8) on which the second magnetic body (M2) is fixed. The flat plate (8) includes a left edge (86) adjacent to the left guide rail (61) and a right edge (87) adjacent to the right guide rail (62) when the first component (1) and the second component (2) are connected.

11. The buckle according to any one of claims 2 to 5, characterized in that: A first holding part (9) for holding the first magnetic body (M1) is provided on the lower surface (55b) of the main board (55). The first engaging portion (41) includes a hook head (41m) which is connected to the first retaining portion (9) at a position that is downward away from the lower surface (55b) of the main board (55) and protrudes from the first retaining portion (9) along the lateral direction.

12. The buckle according to claim 11, characterized in that: The first holding part (9) includes a peripheral wall (91) surrounding the first magnetic body (M1), and an annular rib (92) for holding the first magnetic body (M1) within the peripheral wall (91) is provided on the inner wall surface of the peripheral wall (91). The annular rib (92) is provided in such a way that it is offset upward from the opening end of the peripheral wall (91).

13. The buckle according to claim 12, characterized in that: The first retaining part (9) also includes a protrusion (93) that protrudes downward from the lower surface of the main board (55) to contact the upper surface of the first magnet (M1).

14. The buckle according to any one of claims 1 to 5, characterized in that: The second body (21) includes a second belt mounting portion (85), and the cover member (12) is positioned to partially cover the second belt mounting portion (85) while the first member (1) and the second member (2) are connected.

15. The buckle according to any one of claims 1 to 5, characterized in that: The first fitting part (31) includes a male part, and the second fitting part (32) includes a female groove for the male part to be inserted.

16. The buckle according to any one of claims 1 to 5, characterized in that: The cover component (12) further includes a third engaging portion (43), which is positioned differently in the lateral direction from the first engaging portion (41). The second body (21) also includes a fourth engaging part (44), which can engage with the third engaging part (43).

17. The buckle according to claim 16, characterized in that: The first engaging part (41) is positioned in the lateral direction between the first engaging part (31) and the first magnetic body (M1), and the second engaging part (42) is positioned in the lateral direction between the second engaging part (32) and the second magnetic body (M2).

18. The buckle according to any one of claims 1 to 5, characterized in that: The first engaging portion (41) is positioned laterally closer to the rear end of the cover member (12) than the first engaging portion (31) and the first magnetic body (M1), and the second engaging portion (42) is positioned laterally closer to the front end of the second body (21) than the second engaging portion (32) and the second magnetic body (M2).

19. A method for releasing a buckle connection, the buckle (100) comprising a first component (1) and a second component (2) capable of being connected based on magnetic engagement, characterized in that: The first component (1) includes: a first body (11) which includes a first fitting portion (31); a cover component (12) which is mounted on the first body (11) in a laterally slidable manner and includes a first engaging portion (41); and a first magnet (M1) which is fixed to the cover component (12). The second component (2) includes: a second body (21); and a second magnetic body (M2) fixed to the second body (21). The second body (21) includes: a second fitting portion (32) capable of fitting with the first fitting portion (31); and a second engaging portion (42) capable of engaging with the first engaging portion (41). At least one of the first magnetic body (M1) and the second magnetic body (M2) is a magnet. Based on the magnetic bonding of the first magnetic body (M1) and the second magnetic body (M2), the first fitting part (31) and the second fitting part (32) can fit together, and the fitting of the first fitting part (31) and the second fitting part (32) can prevent the separation of the first component (1) and the second component (2) in the lateral direction. The first engaging part (41) and the second engaging part (42) can engage with each other, and the engagement of the first engaging part (41) and the second engaging part (42) can prevent the first component (1) and the second component (2) from separating in the vertical direction orthogonal to the transverse direction or along the vertical direction. The cover component (12) is mounted on the first body (11) in such a way that it covers the first body (11) from above. The buckle connection release method includes: the user holding the cover part (12) with his thumb and forefinger in the width direction of the first part (1) orthogonal to the horizontal and vertical directions, and overcoming the magnetic engagement of the first magnet (M1) and the second magnet (M2) to make the cover part (12) slide relative to the first body (11).

Images