Buckle and buckle member

Abstract

The invention provides a belt buckle. A buckle (9) is provided with: a first buckle member (1) having at least one first female groove (5, 5 '); and a second buckle member (2) having at least one first male portion (4, 4 ') that can be inserted into the at least one first female groove (5, 5'). The first buckle member (1) and the second buckle member (2) are configured so as to be capable of being magnetically joined. The at least one first male portion (4, 4 ') has a guide surface (45), the first buckle member (1) has a sliding portion (62) that slides on the guide surface (45), and the sliding portion (62) slides on the guide surface (45) of the first male portion (4, 4') in a direction opposite to an insertion direction in which the at least one first male portion (4, 4 ') is inserted into the at least one first female groove (5, 5') according to a magnetic attraction force between the first buckle member (1) and the second buckle member (2).

Description

[0001] Technical Area

[0002] The present disclosure relates to a buckle and buckle components. Background Art

[0003] Japanese Utility Model Publication No. 59-191912 discloses a buckle in which a female connection portion with an inclination of 45° to 85° is provided on a female part, and a male connection portion with an inclination of 45° to 85° is provided on a male part. Japanese Utility Model Publication No. 7-31684 discloses a buckle similar to that disclosed in Japanese Utility Model Publication No. 59-191912.

[0004] Utility Model Registration No. 3200327 discloses a buckle including a buckle body and a locking member connected thereto. The buckle body has a built-in magnet, and the locking member also has a built-in magnet, and the two can be magnetically engaged. In the buckle body, a rotating member is rotatably arranged on a base. A second locking member is arranged at the top end of the rotating member. A first locking member that is engaged with the second locking member is arranged on the connecting member. Summary of the invention

[0005] There is a problem that the buckle components can be connected to each other more easily than the conventional buckle of the type in which the male portion is inserted into the female groove in the buckle width direction.

[0006] A buckle involved in one embodiment of the present invention includes: a first buckle component, which has at least one first female groove extending along the width direction of the first buckle component; and a second buckle component, which has at least one first male part that can be inserted into the at least one first female groove, and the first buckle component and the second buckle component are combined by inserting the at least one first male part into the at least one first female groove. In the buckle, the first buckle component and the second buckle component are constructed in a manner that can be magnetically engaged, at least one first male part has a guide surface, and the first buckle component has a sliding part that slides on the guide surface. According to the magnetic attraction between the first buckle component and the second buckle component, the sliding part can slide on the guide surface of the first male part in a direction opposite to the insertion direction of the at least one first male part into the at least one first female groove.

[0007] Another embodiment of the present disclosure relates to a buckle, comprising: a first buckle component, which has at least one first female groove extending along the width direction of the first buckle component; and a second buckle component, which has at least one first male part that can be inserted into at least one first female groove, and the first buckle component and the second buckle component are combined by inserting at least one first male part into at least one first female groove. In the buckle, the first buckle component includes a first magnet, and the second buckle component includes a second magnet. The magnetic axes of the first magnet and the second magnet are respectively orthogonal to or intersecting with an axis parallel to the insertion direction of the at least one first male part into the at least one first female groove. According to the magnetic attraction between the first magnet and the second magnet in the radial direction of their respective magnetic axes, at least one first male part can be automatically inserted into at least one first female groove. In some cases, at least one first male part has a guide surface, and the first buckle component has a sliding part that slides on the guide surface. According to the magnetic attraction between the first magnet and the second magnet, the sliding part slides on the guide surface of the first male part in a direction opposite to the insertion direction of at least one first male part into at least one first female groove.

[0008] Another embodiment of the present disclosure relates to a buckle, comprising: a first buckle component, which has at least one first female groove extending along the width direction of the first buckle component; and a second buckle component, which has at least one first male part that can be inserted into the at least one first female groove, and the first buckle component and the second buckle component are combined by inserting the at least one first male part into the at least one first female groove. In the buckle, at least one first male part has a guide surface, and the first buckle component has a sliding part that slides on the guide surface, and the sliding part slides on the guide surface of the first male part in a direction opposite to the insertion direction of the at least one first male part into the at least one first female groove, and then the at least one first male part can be inserted into the at least one first female groove.

[0009] Another embodiment of the present disclosure relates to a buckle component, including a cord-like mounting portion, a snap-fit ​​portion connected to the cord-like mounting portion, and a magnet, wherein the snap-fit ​​portion includes: at least one female groove extending in the width direction of the buckle component; and at least one male portion adjacent to the at least one female groove on a side of the at least one female groove away from the cord-like mounting portion, the at least one male portion being arranged in a manner orthogonal or intersecting with the magnetic axis of the magnet when viewed from the thickness direction of the buckle component, and the at least one male portion having a side surface inclined in a manner close to the cord-like mounting portion corresponding to the extension along the at least one female groove. In some cases, the side surface is arranged at an end of the at least one male portion in the width direction of the buckle component, and the end surface is located near the center of the width direction of the buckle component. The side surface can extend along an axis that forms an angle in the range of 25° to 75° relative to an axis parallel to the insertion direction of the at least one male portion into the at least one female groove.

[0010] The features described in the claims can be applied to the above-described embodiments.

[0011] In some cases, before inserting at least one first male part into at least one first female groove, based on the magnetic attraction between the first buckle component and the second buckle component, the sliding part slides on the guide surface of the first male part in a direction opposite to the insertion direction of the at least one first male part into the at least one first female groove.

[0012] In some cases, a yoke and magnet combination is used to control the flow of magnetic field lines.

[0013] In some cases, the first magnet is insert-molded in one of the first buckle component and the second buckle component, and the second magnet or ferromagnetic body is insert-molded in the other of the first buckle component and the second buckle component. Preferably, the first magnet and the second magnet (e.g., neodymium magnet) are embedded in the first buckle component and the second buckle component, respectively.

[0014] In some cases, when the distance between the magnetic axes of the first magnet and the second magnet is at a maximum during the coupling of the first buckle member and the second buckle member, the first magnet and the second magnet partially face each other.

[0015] In some cases, the first male portion has a stopper surface for preventing the sliding portion from being displaced in the longitudinal direction of the buckle, and the sliding portion moves along an edge between the guide surface and the stopper surface.

[0016] In some cases, the distance between the magnetic axis of the first magnet and the magnetic axis of the second magnet when the first buckle member and the second buckle member are coupled is not less than 1 / 20 and not more than 1 / 5 of the maximum width of the buckle.

[0017] Effects of the Invention

[0018] According to one aspect of the present disclosure, it is possible to facilitate the buckle components to be coupled to each other more easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a perspective view of a buckle according to one aspect of the present disclosure, in which a first buckle component and a second buckle component are in a coupled state.

[0020] Figure 2 This is a perspective view of a buckle according to one aspect of the present disclosure, in which a first buckle component and a second buckle component are in a separated state.

[0021] Figure 3 It is a top view of the second buckle component.

[0022] Figure 4 It is a front view of the second buckle component.

[0023] Figure 5 It is a top view schematic diagram of the first buckle component, showing the female groove, male part and bottom in partial section.

[0024] Figure 6 This is a front view of the first buckle component.

[0025] Figure 7 It is a schematic perspective view of the first buckle component.

[0026] Figure 8 It is a schematic plan view of the buckle in a state where the first buckle component and the second buckle component are coupled.

[0027] Fig. 9 It is along Figure 8 A schematic cross-sectional view of the centerline of the buckle is shown.

[0028] Fig.10 yes Fig. 9 Schematic cross-sectional view of the first buckle component shown.

[0029] Fig.11 yes Fig. 9 Schematic cross-sectional view of the second buckle component shown.

[0030] Fig.12 It is a schematic diagram which shows the process of connecting the first buckle member and the second buckle member.

[0031] Fig.13 It is a schematic diagram which shows the process of connecting the first buckle member and the second buckle member.

[0032] Fig.14 It is a schematic diagram which shows the process of connecting the first buckle member and the second buckle member.

[0033] Fig.15 It is a schematic diagram which shows the state which completed the connection of the 1st buckle member and the 2nd buckle member.

[0034] Fig.16 It is a schematic diagram showing a modified example.

[0035] Fig.17 It is a schematic diagram showing a modified example.

[0036] Fig.18 It is a schematic diagram showing a modified example.

[0037] Fig.19 It is a schematic diagram showing a modified example.

[0038] Fig. 20 It is a schematic plan view of a buckle according to a modified example, and shows a state in which a first buckle member and a second buckle member are separated.

[0039] Fig.21 It is a schematic diagram which shows the process of connecting the first buckle member and the second buckle member.

[0040] Fig. 22 It is a schematic diagram which shows the process of connecting the first buckle member and the second buckle member.

[0041] Fig.23 It is a schematic diagram which shows the state which completed the connection of the 1st buckle member and the 2nd buckle member.

[0042] Fig.24 It is a schematic diagram which shows the process of releasing the connection between the first buckle member and the second buckle member.

[0043] Description of Reference Numerals

[0044] 1 Buckle Part 1

[0045] 2 Second buckle part

[0046] 4 Public Ministry

[0047] 4' Public

[0048] 5 Mother slot

[0049] 5' Mother Groove

[0050] 6 Public Ministry

[0051] 6' Public

[0052] 7 Mother slot

[0053] 7' Mother Groove

[0054] 8 belt

[0055] 9 Buckle

[0056] 11 plate-shaped part

[0057] 31 Containment Department

[0058] 32 Insertion

[0059] 45 Guide surface

[0060] 45' Guide Surface

[0061] 65 Guide surface

[0062] 91 1st belt rope installation part

[0063] 92 Second rope installation part

[0064] 93 1st engagement part

[0065] 94 Second engagement portion

[0066] AX1 Magnetic Axis

[0067] AX2 Magnetic Axis

[0068] M1 1st magnet

[0069] M2 Second magnet DETAILED DESCRIPTION

[0070] Various embodiments and features are described below with reference to the accompanying drawings. A person skilled in the art can combine the various embodiments and / or the various features without excessive explanation, and can also understand the synergistic effect brought about by the combination. In principle, repeated descriptions between the embodiments are omitted. The main purpose of referring to the accompanying drawings is to describe the invention, and the drawings are simplified for the convenience of drawing. Each feature is not only effective for the buckle disclosed in this application, but can be understood as a general feature that is also applicable to various other buckles not disclosed in this specification.

[0071] Reference Figures 1 to 11 Provide explanation. Figure 1 and Figure 2 It is a three-dimensional diagram of the buckle 9. Figure 1 The first buckle component 1 and the second buckle component 2 are in a combined state. Figure 2 The first buckle component 1 and the second buckle component 2 are in a separated state. Figure 3 It is a top view of the second buckle member 2. Figure 4 It is a front view of the second buckle member 2. Figure 5 It is a schematic plan view of the first buckle component 1. Figure 6 It is a front view of the first buckle component 1. Figure 7 It is a schematic perspective view of the first buckle member 1 . Figure 8 FIG. 1 is a schematic top view of the buckle 9 in the state where the first buckle component 1 and the second buckle component 2 are connected. Figure 8 In the figure, the first magnet M1 of the first buckle component 1 and the second magnet M2 of the second buckle component 2 (and their magnetic axes AX1, AX2) are shown by double-dotted lines. The magnetic lines of force from the N pole toward the S pole are also schematically shown. The insertion portion 32 (and the male portion 4) of the second buckle component 2 accommodated in the accommodating portion 31 of the first buckle component 1 are shown by dotted lines. The male portion 6 provided on the inner surface of the upper plate 81 of the accommodating portion 31 is also shown by dotted lines. Fig. 9 It is along Figure 8 The schematic cross-sectional view of the buckle 9 taken along the center line CL is shown. Fig.10 Selectively show Fig. 9 The first buckle component 1 is shown. Fig.11 Selectively show Fig. 9 The second buckle component 2 is shown.

[0072] For ease of explanation, Figure 1As shown in FIG. 1 , three-dimensional coordinates of the width direction D1, thickness direction D2, and length direction D3 are set for the buckle 9. Figure 2 As shown, a first coordinate C1 is set for the first buckle component 1, and a second coordinate C2 is set for the second buckle component 2. The first coordinate C1 sets the direction in which the first buckle component 1 faces the second buckle component 2 as the front. The double-headed arrow between RL indicates the left-right direction consistent with the width direction of the first buckle component 1. The double-headed arrow between FB indicates the front-back direction consistent with the length direction of the first buckle component 1. The double-headed arrow between UD indicates the up-down direction consistent with the thickness direction of the first buckle component 1. The second coordinate C2 sets the direction in which the second buckle component 2 faces the first buckle component 1 as the front. The double-headed arrow between RL indicates the left-right direction consistent with the width direction of the second buckle component 2. The double-headed arrow between FB indicates the front-back direction consistent with the length direction of the second buckle component 2. The double-headed arrow between UD indicates the up-down direction consistent with the thickness direction of the second buckle component 2. The width direction of the first buckle component 1 and the width direction of the second buckle component 2 are parallel to the width direction D1 of the buckle 9.

[0073] The buckle 9 includes a first buckle component 1 and a second buckle component 2 which are separably coupled. Figure 1 As shown, the buckle 9 has a width direction D1, a thickness direction D2 and a length direction D3, and is typically a thin device installed on the first buckle component 1 and the second buckle component 2, the width of which is larger than the specified width of the belt cord. The first buckle component 1 and the second buckle component 2 can be respectively a resin injection molded product or a metal die-cast molded product. Preferably, the first buckle component 1 is a resin molded product insert-molded with the first magnet M1 described later. Similarly, the second buckle component 2 is a resin molded product insert-molded with the second magnet M2 described later. Unlike ordinary plastic buckles (such as side release buckles), the first buckle component 1 and the second buckle component 2 do not have a resin portion (such as a pair of arms) that can be elastically displaced.

[0074] When the first buckle member 1 and the second buckle member 2 are in a coupled state (see Figure 1), even if the second buckle component 2 is pulled in the direction away from the first buckle component 1 in the length direction D3 of the buckle 9, the combination of the two can be maintained. The reason is that the male part 4, 4' (first male part) of the second buckle component 2 is inserted into the female groove 5, 5' (first female groove) of the first buckle component 1. In addition or alternatively, the male part 6, 6' (second male part) of the first buckle component 1 is inserted into the female groove 7, 7' (second female groove) of the second buckle component 1. The same is true even when the first buckle component 1 is pulled away from the second buckle component 2. In addition, one of the upper and lower male parts in the buckle component can be omitted, and the female groove is the same. The length direction D3 is consistent with the length direction of the belt cord installed on the buckle 9 (the first buckle component 1 and the second buckle component 2).

[0075] When the first buckle component 1 and the second buckle component 2 are in a coupled state, the relative displacement between the first buckle component 1 and the second buckle component 2 is restricted in all directions except a predetermined direction (in other words, the first buckle component 1 and the second buckle component 2 are configured as described above). The predetermined direction is a direction intersecting the longitudinal direction D3 of the buckle 9, and as will be understood from the following description, it corresponds to a direction opposite to the insertion direction of the male portion 4, 4' into the female groove 5, 5'.

[0076] The first buckle component 1 includes a first strap mounting portion 91, a first engaging portion 93 connected to the first strap mounting portion 91, and a first magnet M1. The second buckle component 2 includes a second strap mounting portion 92, a second engaging portion 94 connected to the second strap mounting portion 92, and a second magnet M2. The first engaging portion 93 is a receiving portion 31, and the second engaging portion 94 is an insertion portion 32 inserted into the receiving portion 31, but is not limited thereto and may have other structures. The second buckle component 2 may selectively include a stop wall 68, and a notch 69 may be formed in the receiving portion 31 of the first buckle component 1 to avoid interference with the stop wall 68.

[0077] The first belt cord installation portion 91 is configured to define at least one opening for the belt cord to be inserted, and in the non-limiting illustrated example, has a left wall 26, a right wall 27, and a rod 28. The rod 28 extends in the width direction of the first buckle component 1, connecting the rear ends of the left wall 26 and the right wall 27. In other words, the opening for the belt cord to be inserted has a substantially rectangular shape extending in the width direction. For example, the top end of the belt passes through the (larger width) space between the accommodating portion 31 and the rod 28, and then the top end of the belt is fixed to other parts of the belt (for example, sewn), thereby winding the belt around the rod 28, and the installation is completed.

[0078] The second strap and cord mounting portion 92 is constructed in a manner that allows the length of the strap and cord to be adjusted. Typically, the second strap and cord mounting portion 92 includes a frame portion that supports one or more rods 21 extending in parallel with the width direction of the second buckle component 2, and includes a left wall 22, a right wall 23, a front wall 24, and a rear wall 25 in addition to the rod 21. The rod 21 is supported by the left wall 22 and the right wall 23, and the space between the front wall 24 and the rear wall 25 is divided by the rod 21. With regard to the space, the opening for the strap and cord to be inserted has a generally rectangular shape extending in the width direction. For example, a belt of a specified width passes from the lower side to the upper side through the space (with a larger width) between the rod 21 and the front wall 24, and then passes from the upper side to the lower side through the space (with a larger width) between the rod 21 and the rear wall 25, thereby completing the installation of the belt on the second strap and cord mounting portion 92. The cross-sectional shapes of the front wall 24, the rod 21, and the rear wall 25 are respectively (refer to Figure 4 ) is optimized for installation with ropes.

[0079] The first strap mounting portion 91 may be configured to allow the length of the straps to be adjusted, similarly to the second strap mounting portion 92. The second strap mounting portion 92 may be configured to not allow the length of the straps to be adjusted, similarly to the first strap mounting portion 91. The first buckle component 1 and the second buckle component 2 are combined to close the same strap in a loop, or to connect different straps.

[0080] The second buckle member 2 (or the second engaging portion 94) includes: a female groove 7, 7', which extends along the width direction of the buckle member; and a male portion 4, 4', which is adjacent to the female groove 7, 7' on the side of the female groove 7, 7' away from the second belt cord mounting portion 92 (more specifically, the front side of the second buckle member 2) (refer to Figure 3 and Figure 4 ). The first buckle component 1 (e.g., the first engaging portion 93 thereof) includes: a female groove 5, 5' extending along the width direction of the buckle component; and a male portion 6, 6' adjacent to the female groove 5, 5' on the side of the female groove 5, 5' away from the first strap cord mounting portion 91 (more specifically, the front side of the first buckle component 1) (see Figure 5 and Figure 6 ).

[0081] Along the width direction D1 of the buckle 9, the male parts 4, 4' can be inserted into the female grooves 5, 5', and similarly, the male parts 6, 6' can be inserted into the female grooves 7, 7' (see Figure 8). By inserting the male parts 4, 4', 6, 6' into the female grooves 5, 5', 7, 7' along the width direction D1 of the buckle 9, the first buckle component 1 and the second buckle component 2 are combined in the length direction of the buckle 9 (in a manner that they can be separated in the width direction). It is also conceivable that the buckle 9 has only one of the first male-female pair consisting of the male parts 4, 4' and the female grooves 5, 5' and the second male-female pair consisting of the male parts 6, 6' and the female grooves 7, 7'. That is, the buckle 9 shown in the figure has a total of 4 male-female pairs, but it is also possible to adopt a form with only one male-female pair.

[0082] In addition, the male part 4, 4', 6, 6' can be a protrusion in the thickness direction of the buckle part. The female groove 5, 5', 7, 7' can be a recessed part that accommodates the male part 4, 4', 6, 6'. The direction of engagement and the direction of disengagement of the first buckle part 1 and the second buckle part 2 are different from the direction in which the buckle 9 exerts the engagement force (i.e., its length direction D3), and are consistent with the direction in which the male part 4, 4' is inserted into the female groove 5 and the direction in which the male part 4, 4' is pulled out from the female groove 5.

[0083] Preferably, the male parts 4, 4', 6, 6' are protrusions extending in the width direction of the buckle parts, thereby suggesting the connection direction of the first buckle part 1 and the second buckle part 2, which can promote the proper operation of the buckle 9. The male parts 4 and 6 protrude in opposite directions up and down, and the male parts 4' and 6' are the same. The female grooves 5, 5', 7, 7' extend in the shape of long strips along the width direction of the buckle parts. The female grooves 5 and 7 are recessed in opposite directions up and down, and the female grooves 5' and 7' are the same.

[0084] By partially inserting the male part 4, 4', 6, 6' into the female groove 5, 5', 7, 7', it is possible to ensure that the two are fully engaged, and the male part 4, 4', 6, 6' does not need to be inserted into the female groove 5, 5', 7, 7' over its entire length. As a modified example, based on design requirements or other requirements, it is also conceivable that the male part 4, 4', 6, 6' and the female groove 5, 5', 7, 7' are shorter in the width direction of the buckle part. It is also conceivable that the male part 4, 4', 6, 6' is divided or divided into a plurality of islands in the width direction of the buckle part.

[0085] The male part 4, 4', 6, 6' can extend parallel or obliquely along the width direction of the buckle component. The female groove 5, 5', 7, 7' can extend parallel or obliquely along the width direction of the buckle component. Typically, the male part 4, 4', 6, 6' and the female groove 5, 5', 7, 7' are inclined in the width direction of the buckle component, thereby preventing the male part 4, 4', 6, 6' from easily falling off from the female groove 5, 5', 7, 7'. Figure 3 As shown, the male portions 4, 4' form an acute angle θ1 with respect to the axis L1 which coincides with the width direction of the second buckle member 2. The same is true for the female grooves 7, 7'. Figure 5 As shown, the male portion 6, 6' forms an acute angle θ4 with respect to the axis L4 that coincides with the width direction of the first buckle member 1. The same is true for the female grooves 5, 5'. θ1 = θ4 can be satisfied. θ1, θ4 can be an acute angle of less than 45°, less than 30°, less than 25°, or less than 20°.

[0086] The male portion 4, 4' includes a first end portion 41 and a second end portion 42, and can be tilted in a manner close to the second strap cord mounting portion 92 (i.e., to the rear of the second buckle component 2) in accordance with the extension from the first end portion 41 toward the second end portion 42. The male portion 6, 6' includes a first end portion 61 and a second end portion 62, and can be tilted in a manner close to the first strap cord mounting portion 91 (i.e., to the rear of the first buckle component 1) in accordance with the extension from the first end portion 61 toward the second end portion 62.

[0087] The male parts 4, 4' and the male parts 6, 6' are arranged complementary to each other in the width direction D1 of the buckle 9. That is, the male part 6 is arranged on the right side in the first buckle component 1, and the male part 4 is arranged on the left side in the second buckle component 2, so that Figure 2 As shown, when the first buckle component 1 and the second buckle component 2 face each other, the male portion 4 and the male portion 6 are not opposite to each other or are only partially opposite to each other in the longitudinal direction D3 of the buckle 9. Therefore, even if the first buckle component 1 and the second buckle component 2 are close to each other (for example, due to the magnetic attraction between the first magnet M1 and the second magnet M2), it is possible to suppress the male portion 4 and the male portion 6 from colliding. The same is true for the male portion 4' and the male portion 6'.

[0088] The second end 42 of the male part 4, 4' can be located near the center of the second buckle part 2 in the width direction. In other words, the second end 42 of the male part 4, 4' can be located closer to the center line CL of the first buckle part 1 than the end of the first buckle part 1 in the width direction. In terms of this feature, when the center line CL of the second buckle part 2, the first tangent line L991 parallel to the center line CL and in contact with the side surface (one end in the width direction) of the second buckle part 2, and the middle line L981 located between the center line CL and the first tangent line L991 are set, the second end 42 of the male part 4, 4' can be located between the center line CL and the middle line L981. The second end 42 of the male part 4, 4' can be located between another middle line (not shown) between the center line CL and the middle line L981 and the center line CL. The second end 62 of the male part 6, 6' can be located near the center of the first buckle part 1 in the width direction. With regard to this feature, the same description as above can be applied to the second end 42 of the male part 4, 4'. With such a structure of the male part 4, 4', 6, 6', it is possible to suppress the collision between the male part 4, 4' and the male part 6, 6', so that the first buckle component 1 and the second buckle component 2 can be easily engaged in the front-back direction (the length direction D3 of the buckle 9). It is preferred that the male part 4, 4', 6, 6' has a length within the range of 1 / 3 to 3 / 4 of the maximum width of the buckle component.

[0089] In some cases, the male portion 4, 4' (preferably the second end portion 42 thereof) includes: a guide surface 45 extending along an axis L3 that forms an acute angle θ2 with an axis L2 parallel to the length direction of the male portion 4, 4'; a stop surface 46 that is located behind the guide surface 45 and extends along the axis L2; ​​and a rounded edge 47 formed between the guide surface 45 and the stop surface 46 (see Figure 3 ). In addition, the axis L2 is consistent with the insertion direction of the male part 4, 4' into the female groove 5, 5'. The guide surface 45 is the side surface of the male part 4, 4' (the second end 42), and the stop surface 46 is the rear surface of the male part 4, 4'.

[0090] In some cases, the male portion 6, 6' (preferably the second end portion 62 thereof) includes: a guide surface 65 extending along an axis L6 forming an acute angle θ5 with an axis L5 parallel to the length direction of the male portion 6, 6'; a stop surface 66 located behind the guide surface 65 and extending along the axis L5; and a rounded edge 67 formed between the guide surface 65 and the stop surface 66 (see Figure 5 ). In addition, the axis L5 is consistent with the insertion direction of the male part 6, 6' into the female groove 7, 7'. The guide surface 65 is the side surface of the male part 6, 6' (the second end 62), and the stop surface 66 is the rear surface of the male part 6, 6'.

[0091] As described above, the male parts 4, 4', 6, 6' are provided with guide surfaces 45, 65, so that the male parts 4, 4' and the male parts 6, 6' can avoid each other, respectively, thereby being able to smoothly and easily ensure the initial engagement of the first buckle component 1 and the second buckle component 2. Preferably, θ2, θ5 are equal to an angle within the range of 25° to 75° or within the range of 35° to 65°, and preferably θ2, θ5 are substantially the same angle.

[0092] The female groove 5, 5' includes an introduction end 51 and an opposite end 52 on the opposite side of the introduction end 51. The female groove 5, 5' extends obliquely between the introduction end 51 and the opposite end 52, and in detail, is inclined in a manner that is farther away from the rear end of the first strap cord mounting portion 91 than it is away from the introduction end 51 toward the opposite end 52 (i.e., toward the front of the first buckle component 1). The introduction end 51 is an entrance of the male part 4, 4' inserted into the female groove 5, 5', and an exit of the male part 4, 4' pulled out of the female groove 5, 5'. The second end 62 of the male part 6, 6' is provided adjacent to the front of the introduction end 51. It is reiterated that the male part 4, 4' does not need to be inserted into the female groove 5, 5' in a manner that the second end 42 of the male part 4, 4' reaches the opposite end 52 of the female groove 5, 5'. The opposite end 52 may be a closed end closed by the side plate 83, but is not limited thereto. In the example shown in the figure, the female grooves 5 and 5' have a width W5 defined by the stopper surface 66 (rear surface) of the male portion 6 and 6' and the bottom surface 84a of the bottom portion 84 described later. The bottom surface of the female groove 5 coincides with the bottom surface of the upper plate 81 described later, and the bottom surface of the female groove 5' coincides with the upper surface of the lower plate 82 described later.

[0093] The female groove 7, 7' includes an introduction end 71 and an opposite end 72 on the opposite side of the introduction end 71. The female groove 7, 7' extends obliquely between the introduction end 71 and the opposite end 72, and in detail, is inclined in a manner that is farther away from the rear end of the second strap cord mounting portion 92 (i.e., toward the front of the first buckle component 1) than the introduction end 71 is farther away from the opposite end 72. The introduction end 71 is an entrance of the male part 6, 6' inserted into the female groove 7, 7', and an exit of the male part 6, 6' pulled out of the female groove 7, 7'. The second end 42 of the male part 4, 4' is provided adjacent to the front of the introduction end 71. It is reiterated that the male part 6, 6' does not need to be inserted into the female groove 7, 7' in a manner that the second end 62 of the male part 6, 6' reaches the opposite end 72 of the female groove 7, 7'. The opposite end 72 may be a closed end closed by the stop wall 68, but is not limited thereto.

[0094] As described above, the second engaging portion 94 may be an insertion portion 32 inserted into the accommodating portion 31. The insertion portion 32 is connected to the second strap mounting portion 92 (e.g., the front wall 24 thereof), and is optionally connected to the stop wall 68. The insertion portion 32 includes a thick portion 67a having a relatively large thickness W67a, and a thin portion 67b having a relatively small thickness W67b (see FIG. Figure 4 ). The thick portion 67a and the thin portion 67b can be inserted into the opening area 85a of the front opening 85 of the housing portion 31 described later. The thin portion 67b can be inserted into the opening area 85b of the front opening 85 of the housing portion 31 described later, but the thick portion 67a cannot be inserted. In addition, the thick portion 67a and the thin portion 67b can also be inserted into the side opening 86 of the housing portion 31 described later.

[0095] The insertion portion 32 includes: a plate-like portion 11 having an upper surface 11a and a lower surface 11b; a male portion 4, which is arranged on the upper surface 11a; and a male portion 4', which is arranged on the lower surface 11b. The plate-like portion 11 and the male portions 4, 4' constitute the above-mentioned thick portion 67a. A portion of the plate-like portion 11 where the male portions 4, 4' are not provided constitutes the above-mentioned thin portion 67b. The shapes of the male portions 4, 4' are formed to be mirror-symmetrical in the up and down directions, but are not limited to this. The insertion portion 32 can have a chamfer 49 connecting the upper surface of the male portion 4 and the front surface of the plate-like portion 11, and as an addition or alternative, it can have a chamfer connecting the lower surface of the male portion 4' and the front surface of the plate-like portion 11. Thereby, the insertion of the insertion portion 32 into the accommodating portion 31 becomes smooth. The chamfer contains the front surface of the male portion 4.

[0096] Female grooves 7, 7' are formed between the male parts 4, 4' and the second strap and cord mounting part 92. The female grooves 7, 7' have a width W7 defined by the stop surface 46 (rear surface) of the male parts 4, 4' and the front surface of the front wall 24. The bottom surface of the female groove 7 coincides with the upper surface of the plate-like part 11, and the bottom surface of the female groove 7' coincides with the lower surface of the plate-like part 11. The depth of the female groove 7 coincides with the height of the upper surface of the male part 4 from the upper surface 11a of the plate-like part 11, and the depth of the female groove 7' coincides with the height of the lower surface of the male part 4' from the lower surface 11b of the plate-like part 11.

[0097] The plate-like portion 11 can be longer than the male portion 4, 4' in the width direction of the second buckle component 2. As a result, the thin portion 67b can have a sufficient width in the width direction of the second buckle component 2, and the initial engagement of the first buckle component 1 and the second buckle component 2 can be ensured smoothly and easily. The plate-like portion 11 (and / or the thin portion 67b) includes: a protrusion 15, which protrudes on the same axis as the male portion 4, 4' in the width direction of the second buckle component 2; and a gap 16, which is formed between the protrusion 15 and the second strap cord mounting portion 92 (refer to Figure 3 On the other hand, the housing portion 31 has a closing wall 63 that partially closes the front opening 85 of the housing portion 31 (see Figure 6 , Figure 7 When the male parts 4, 4', 6, 6' are inserted into the female grooves 5, 5', 7, 7', the closing wall 63 is inserted into the above-mentioned gap 16, and the connection between the first buckle component 1 and the second buckle component 2 is strengthened.

[0098] As described above, the first engaging portion 93 may be a receiving portion 31. The receiving portion 31 includes an upper plate 81, a lower plate 82, a side plate 83, and a bottom 84, defining a receiving space that is open in the front and on one side (the left side in the case of the figure). The upper plate 81 (for example, its front end) is provided with a male portion 6 (on the upper side) protruding toward the lower plate 82, and a female groove 5 (on the upper side) is defined between the male portion 6 and the bottom 84. The lower plate 82 (for example, its front end) is provided with a male portion 6' (on the lower side) protruding toward the upper plate 81, and a female groove 5' (on the lower side) is defined between the male portion 6' and the bottom 84. The shapes of the female groove 5 and the female groove 5' are formed to be mirror-symmetrical, but are not limited to this.

[0099] The storage space of the storage part 31 is open in two directions, namely, the front and the left and right sides, thereby promoting a smoother combination of the first buckle component 1 and the second buckle component 2. The front opening 85 of the storage part 31 is wide in the width direction of the buckle components, and is defined by the upper plate 81, the lower plate 82 and the side plate 83, and has an open end on one side (the left side in the case of the figure) and a closed end on the other side (the right side in the case of the figure). The front opening 85 of the storage part 31 includes: an opening area 85a, which has a vertical width W85a between the upper plate 81 and the lower plate 82; and an opening area 85b, which has a vertical width W85b reduced by the male parts 6, 6'. The opening area 85a is also spatially connected to the side opening 86. The opening area 85b can be formed between the above-mentioned closed wall 63 and the opening area 85a.

[0100] The side opening 86 of the receiving portion 31 is an opening on one side of the receiving space in the width direction of the buckle component, and is defined by the upper plate 81, the lower plate 82 and the bottom 84, and has an open end in the front and a closed end in the rear. In addition, there is the following advantage: the receiving space of the receiving portion 31 is opened only on one side, rather than on both sides. For example, the insertion direction or insertion method of the insertion portion 32 into the receiving portion 31 is restricted, which can prevent the insertion portion 32 from being inserted into the receiving portion 31 in an undesirable direction or method.

[0101] The bottom portion 84 may have a bottom surface 84a inclined in parallel with the male portion 6, 6'. Typically, the stop surface 66 of the male portion 6, 6' is opposite to the bottom surface 84a of the bottom portion 84, defining the width W5 of the female groove 5, 5'. The bottom surface 84a of the bottom portion 84 does not need to be a flat surface. The width W5 of the female groove 5, 5' does not need to be constant in the width direction of the first buckle component 1, and may vary.

[0102] In the present embodiment, the first buckle component 1 and the second buckle component 2 are configured to be magnetically engaged (adsorbed by magnetic force), so that the operation of combining the first buckle component 1 and the second buckle component 2 is automated or semi-automated. The first buckle component 1 and the second buckle component 2 can be magnetically engaged along a direction different from the insertion direction of the male portion 4, 4', 6, 6' into the female groove 5, 5', 7, 7', more specifically, along the length direction D3 of the buckle 9. In some cases, the first buckle component 1 includes a first magnet M1 (for example, a permanent magnet such as a neodymium magnet), and the second buckle component 2 includes a second magnet M2 (for example, a permanent magnet such as a neodymium magnet). When the first buckle component 1 and the second buckle component 2 are located at a relatively close position, the first buckle component 1 and the second buckle component 2 are brought close to each other according to the magnetic attraction between the first magnet M1 and the second magnet M2, and are automatically engaged as described later.

[0103] The first magnet M1 can be oriented in such a way that its magnetic axis AX1 is orthogonal to or intersecting with the extension direction of the female groove 5, 5' (the axis L5 parallel to the insertion direction of the male part 4, 4' into the female groove 5, 5'). The second magnet M2 can be oriented in such a way that its magnetic axis AX2 is orthogonal to or intersecting with the extension direction of the male part 4, 4' (the axis L2 parallel to the insertion direction of the male part 4, 4' into the female groove 5, 5'). In this way, the male parts 4, 4', 6, 6' are smoothly inserted into the female grooves 5, 5', 7, 7' by the magnetic attraction force between the first magnet M1 and the second magnet M2 (especially the radial magnetic attraction force related to the magnetic axes AX1, AX2). The magnetic axis AX1 can intersect with the axis L5 at an acute angle of more than 60°. The magnetic axis AX2 can intersect with the axis L2 at an acute angle of more than 60°.

[0104] The acute angle θ4 (refer to Figure 5 ) Correspondingly, the magnetic axis AX1 of the first magnet M1 forms an acute angle θ6 with the center line CL of the first buckle member 1 (see Figure 5 ). Corresponding to the acute angle θ1 of the inclination of the male portion 4, 4' (refer to Figure 3 ), the magnetic axis AX2 of the second magnet M2 forms an acute angle θ3 with the center line CL of the buckle 9 (refer to Figure 3 ). Acute angles θ1, θ3, θ4, and θ6 are the same or substantially the same. Acute angles θ3 and θ4 are the same or substantially the same as acute angles θ1 and θ2.

[0105] When the first buckle member 1 and the second buckle member 2 are connected, the magnetic axis AX1 and the magnetic axis AX2 are arranged so as not to be on the same straight line (typically, substantially parallel) with a gap W9 (see Figure 8). Thus, the male parts 4, 4', 6, 6' can be prevented from moving in the direction away from the female grooves 5, 5', 7, 7'. In addition, the magnetic axis of the magnet coincides with the central axis of the multiple magnetic lines of force from the N pole to the S pole of the magnet (refer to Figure 8 ). In other words, the magnetic axis of the magnet is located at the center of the magnet in the width direction of the buckle part, and is consistent with the axis line where different magnetic poles are arranged. The magnetic poles of the first magnet M1 and the second magnet M2 are arranged as shown in Figure 8 shown.

[0106] In the case where the first magnet M1 and the second magnet M2 are rectangular parallelepipeds that are long along the width direction D1 of the buckle 9, the first magnet M1 is oriented along the female groove 5 (for example, parallel or substantially parallel), and the second magnet M2 is oriented along the male parts 4, 4' (for example, parallel or substantially parallel). The first magnet M1 is held in the bottom 84 of the accommodating portion 31 in an embedded manner. The second magnet M2 is held in the insertion portion 32 (for example, the plate-shaped portion 11) in an embedded manner. By configuring the magnets in this way, the magnetic attraction between the first buckle component 1 and the second buckle component 2 can be increased. The magnets can be embedded in the resin parts of the first buckle component 1 and the second buckle component 2 by insert molding, but are not limited to this. The magnets can also be placed in recesses formed in the resin parts of the first buckle component 1 and the second buckle component 2 and fixed by closing the recesses with a cover. It should be noted that the first magnet M1 and the second magnet M2 can adopt various shapes other than rectangular parallelepiped, such as pyramidal, disk-shaped, rod-shaped, etc. In addition, as another aspect, in order to control the magnetic attraction force, iron or the like may be used as a yoke in combination with a magnet.

[0107] When viewed from the thickness direction (upper or lower side) of the second buckle member 2, the male portion 4, 4' and / or the female groove 7, 7' can overlap at least partially with the second magnet M2 (see Figure 8 ). For example, the male portion 4 is at least partially located above the upper surface of the second magnet M2, and / or the male portion 4' is at least partially located below the lower surface of the second magnet M2. Additionally or alternatively, the bottom surface of the female groove 7 is at least partially located directly above the upper surface of the second magnet M2, and / or the bottom surface of the female groove 7' is at least partially located directly below the lower surface of the second magnet M2. By configuring the second magnet M2 in this way, the magnetic connection with the first magnet M1 can be strengthened.

[0108] As an alternative to the form in which the first buckle component 1 and the second buckle component 2 each include a magnet, the following form can also be adopted: one of the first buckle component 1 and the second buckle component 2 includes a magnet (such as a neodymium magnet, etc.), and the other includes a ferromagnetic body that can be magnetically bonded to the magnet (such as iron, nickel, cobalt, their alloys, etc.). When the first buckle component 1 and the second buckle component 2 are located in a relatively close position, the ferromagnetic body is attracted by the magnetic force of the magnet, and the same effect can be obtained. It is also possible to install a plurality of magnets and / or ferromagnetic bodies in the first buckle component 1, and the same is true for the second buckle component 2.

[0109] As described above, the male parts 4, 4', 6, 6' have guide surfaces 45, 65. During the magnetic engagement of the first buckle component 1 and the second buckle component 2, the second end 62 of the male parts 6, 6' slides on the guide surface 45 of the male parts 4, 4' (that is, it functions as a "sliding part" in which the second end 62 of the male parts 6, 6' slides on the guide surface 45). The second end 62 slides in the direction opposite to the insertion direction of the male parts 4, 4' into the female grooves 5, 5'. During the magnetic engagement of the first buckle component 1 and the second buckle component 2, the second end 42 of the male parts 4, 4' slides on the guide surface 65 of the male parts 6, 6' (that is, it functions as a "sliding part" in which the second end 42 of the male parts 4, 4' slides on the guide surface 65). The second end 42 slides in the direction opposite to the insertion direction of the male parts 6, 6' into the female grooves 7, 7'. In this way, the initial engagement of the first buckle member 1 and the second buckle member 2 can be ensured smoothly and easily.

[0110] When the second end 62 of the male part 6, 6' finishes sliding on the guide surface 45 of the male part 4, 4', the male part 6, 6' is located at a position (for example, the introduction end 71) that can be inserted into the female groove 7, 7'. Then, based on the radial magnetic attraction between the first magnet M1 and the second magnet M2 with respect to the magnetic axis AX1, AX2 (that is, the alignment effect of the first magnet M1 and the second magnet M2), the male part 6, 6' is automatically inserted into the female groove 7, 7'. When the second end 42 of the male part 4, 4' finishes sliding on the guide surface 65 of the male part 6, 6', the male part 4, 4' is located at a position (for example, the introduction end 51) that can be inserted into the female groove 5, 5'. Then, based on the radial magnetic attraction between the first magnet M1 and the second magnet M2 with respect to the magnetic axis AX1, AX2, the male part 4, 4' is automatically inserted into the female groove 5, 5'. In this way, the male parts 4, 4', 6, 6' are inserted into the female grooves 5, 5', 7, 7', and the first buckle member 1 and the second buckle member 2 are coupled.

[0111] In addition, when observed along the thickness direction (upper or lower side) of the second buckle component 2, at least a portion of the guide surface 45, 45' can be located on the second magnet M2. At least a portion of the guide surface 45 can be located above the upper surface of the second magnet M2, and / or at least a portion of the guide surface 45' can be located below the lower surface of the second magnet M2. The configuration of the guide surfaces 45, 45' can facilitate smooth sliding of the sliding portion on the guide surfaces. The plane where the magnetic axis AX2 of the second magnet M2 is located intersects with the guide surfaces 45, 45', or does not intersect with the guide surfaces 45, 45'.

[0112] like Fig. 9 As shown in FIG. 1 , when the first buckle component 1 and the second buckle component 2 are connected, the first magnet M1 and the second magnet M2 are located at the closest position and are arranged on the same plane. In addition, the entire second magnet M2 is accommodated in the accommodating portion 31. Fig.10 As shown, the first magnet M1 is embedded in the bottom 84, and is located at a height between the upper plate 81 and the lower plate 82, and at a height between the male portion 6 and the male portion 6'. The first magnet M1 is located behind the male portions 6, 6' and the female grooves 5, 5'. Fig.11 As shown, the second magnet M2 is embedded in the plate-shaped portion 11 and is located between the male portion 4 and the male portion 4'. The second magnet M2 is located in front of the female grooves 7, 7'.

[0113] Reference Figures 12 to 15 , the process of combining the first buckle component 1 and the second buckle component 2 is described. Fig.12 When shown, a magnetic attraction force is generated between the first magnet M1 and the second magnet M2, so the first buckle component 1 and the second buckle component 2 move closer to each other. In addition, in the following description, the predetermined position of the second buckle component 2 is fixed, and the first buckle component 1 is described as being close to the second buckle component 2, but the opposite situation and the situation where both sides are close can also be understood in the same way.

[0114] exist Fig.13When shown, according to the magnetic attraction between the first magnet M1 and the second magnet M2, the second end 62 of the male part 6, 6' slides on the guide surface 45 of the male part 4, 4' (the guide surface 65 in the example shown in the figure). Similarly, the second end 42 of the male part 4, 4' also slides on the guide surface 65 of the male part 6, 6'. In the example shown in the figure, the guide surface 45 of the male part 4, 4' and the guide surface 65 of the male part 6, 6' are in contact with each other, which can ensure smooth displacement between the male part 4, 4' and the male part 6, 6'. Corresponding to the sliding of the second end 62 of the male part 6, 6' on the guide surface 45 of the male part 4, 4', the first magnet M1 approaches the second magnet M2, but in contrast, the interval W9 between the magnetic axis AX1 and the magnetic axis AX2 increases. To be clear, the second end 62 of the male part 6, 6' functions as a sliding part.

[0115] In from Figure 12 to Figure 13 In the process of buckling, there is a possibility that the male parts 4, 4' of the second buckle member 2 and the male parts 6, 6' of the first buckle member 1 collide with each other and prevent the insertion part 32 from being inserted into the receiving part 31 (as a result, there is a possibility that the first buckle member 1 and the second buckle member 2 are prevented from automatically connecting). However, even if such a situation occurs, in most cases, it is easy to get out of this state by applying a slight external force to one of the first buckle member 1 and the second buckle member 2. Fig.13 Status shown.

[0116] exist Fig.14 At the time shown, the second end 62 of the male part 6, 6' slides on the guide surface 45 of the male part 4, 4' and the second end 62 of the male part 6, 6' is located at the introduction end 71 of the female groove 7, 7'. Similarly, the second end 42 of the male part 4, 4' slides on the guide surface 65 of the male part 6, 6' and the second end 42 of the male part 4, 4' is located at the introduction end 51 of the female groove 5, 5'. Then, according to the magnetic attraction between the first magnet M1 and the second magnet M2 in the radial direction of the magnetic axis AX1, AX2 (that is, the alignment effect of the first magnet M1 and the second magnet M2), the first buckle component 1 and the second buckle component 2 are close to each other along the width direction D1 of the buckle 9, and the male part 6, 6' is inserted into the female groove 7, 7', and the male part 4, 4' is inserted into the female groove 5, 5'. Each male part moves from the introduction end of each groove to the opposite end.

[0117] The second end 62 of the male part 6, 6' moves along the rounded edge 47 between the guide surface 45 and the stop surface 46 of the male part 4, 4'. Similarly, the second end 42 of the male part 4, 4' moves along the rounded edge 67 between the guide surface 65 of the male part 6, 6' and the stop surface 66 of the male part 6, 6'. During the rotation of each male part 4, 4', 6, 6' around the above-mentioned edge 47, 67, the interval W9 between the magnetic axes AX1, AX2 becomes the maximum value. Then, corresponding to the insertion of the male part 6, 6' into the female groove 7, 7' and the insertion of the male part 4, 4' into the female groove 5, 5', the interval W9 between the magnetic axes AX1, AX2 gradually decreases. When the interval W9 between the magnetic axes AX1, AX2 is the maximum value, the first magnet M1 and the second magnet M2 are partially opposite to each other. That is, the left side portion (e.g., the left half) of the first magnet M1 and the left side portion (e.g., the left half) of the second magnet M2 are opposed to each other with a small gap in the longitudinal direction D3 of the buckle 9. Therefore, even if the gap between the magnetic axes AX1 and AX2 increases, the first magnet M1 and the second magnet M2 can be maintained in a state of being fully magnetically coupled.

[0118] exist Fig.15 At the time shown, according to the magnetic attraction between the first magnet M1 and the second magnet M2 in the radial direction of the magnetic axes AX1 and AX2 (i.e., the alignment effect of the first magnet M1 and the second magnet M2), the insertion of the male parts 6 and 6' into the female grooves 7 and 7' is completed, and the insertion of the male parts 4 and 4' into the female grooves 5 and 5' is completed. In addition, the receiving portion 31 collides with the stop wall 68 (the stop wall 68 is received in the notch 69 of the receiving portion 31), and the combination of the first buckle component 1 and the second buckle component 2 is completed.

[0119] In order to prevent the second buckle component 2 from being displaced in the direction away from the first buckle component 1 in the longitudinal direction D3 of the buckle 9, the stopper surface 66 of the male portion 6, 6' of the first buckle component 1 can contact the male portion 4, 4' of the second buckle component 2. Similarly, in order to prevent the first buckle component 1 from being displaced in the direction away from the second buckle component 2 in the longitudinal direction D3 of the buckle 9, the stopper surface 46 of the male portion 4, 4' of the second buckle component 2 can contact the male portion 6, 6' of the first buckle component 1. In this way, the separation (relative displacement) of the first buckle component 1 and the second buckle component 2 in the longitudinal direction D3 of the buckle 9 can be prevented.

[0120] When the first buckle component 1 and the second buckle component 2 are connected, a gap W9 remains between the magnetic axes AX1 and AX2, thereby preventing the male parts 6 and 6' from being easily pulled out of the female grooves 7 and 7' and the male parts 4 and 4' from being easily pulled out of the female grooves 5 and 5'. In addition, as described above, the closing wall 63 of the second buckle component 2 is inserted into the gap 16 of the plate-like portion 11 of the second buckle component 2, and the connection between the first buckle component 1 and the second buckle component 2 is strengthened.

[0121] Based on the above description, it can be known that the first magnet M1 and the second magnet M2 are arranged so that the male parts 4, 4', 6, 6' are automatically inserted into the female grooves 5, 5', 7, 7' according to the magnetic attraction between the first magnet M1 and the second magnet M2 in the radial direction of the magnetic axis AX1, AX2, thereby reducing the trouble of combining the first buckle component 1 and the second buckle component 2. In addition or alternatively, in the previous stage, the sliding part on one side between the male part 4, 4' and the male part 6, 6' slides on the guide surface of the other side, thereby ensuring the initial engagement of the first buckle component 1 and the second buckle component 2 (before the male part is inserted into the female groove) smoothly and easily. In particular, the spatial freedom allowed for the combination of the first buckle component 1 and the second buckle component 2 is increased, reducing the trouble of alignment between them.

[0122] Reference Figures 16 to 19 A modification example is described below. Fig.16 As shown in FIG. 1 , the second end 42, 62 (sliding portion) of the male portion 4, 4', 6, 6' may also be an arc-shaped end. In this case, the same effect as described above can be obtained. In addition, focusing on the male portion 4, 4', the width of the front side portion 45p of the guide surface 45 inclined backward corresponding to the extension to the left side is greater than that of the front side portion 45p of the guide surface 45 inclined backward. Figure 3 The narrow width shown is disadvantageous.

[0123] like Fig.17 As shown, the male portion 6, 6' may not be a protrusion extending in the width direction of the second buckle member 2. In this case, the end 62 of the male portion 6, 6' also slides on the guide surface 45 and is then inserted into the female groove 7, 7'.

[0124] like Fig.18 As shown, it is also possible not to provide a guide surface at the end 42, 62 of the male part 4, 4', 6, 6'. Although the guidance by the guide surface and the sliding part cannot be obtained, the male part 4, 4', 6, 6' can still be automatically inserted into the female groove 5, 5', 7, 7' according to the magnetic attraction between the first magnet M1 and the second magnet M2. In addition, it is also possible to embed one end of the belt 8 and install it in the second belt cord installation part 92 by insert molding. The same is true for the first belt cord installation part 91.

[0125] like Fig.19 As shown, the first magnet M1 and the second magnet M2 can be omitted. The first buckle component 1 and the second buckle component 2 are operated manually, but the operating burden is reduced due to the guide surface. Specifically, if the first buckle component 1 and the second buckle component 2 are engaged not only along the width direction D1 of the buckle 9 but also along the length direction D3 of the buckle 9, the male part can be located at the introduction end of the female groove, which promotes easier combination of the two.

[0126] Reference Figure 20 to Figure 24 Another embodiment is described. In this embodiment, features that are additional to or independent of the above-mentioned embodiments or any combination of the embodiments are shown. Specifically, Fig. 20 As shown, the second buckle component 2 includes a direction conversion portion 29 having a withdrawal direction (refer to Fig. 20 The first buckle member 1 slides on the direction changing surface 29a and moves in a direction away from the second buckle member 2 (see FIG. 1 ) in response to the movement of the second male portion 6, 6' in the withdrawal direction D91 from the second female groove 7, 7'. Fig.24 In this way, the first buckle component 1 and the second buckle component 2 can be released more smoothly. The direction change portion 29 can be provided on both upper and lower sides or one side of the second buckle component 2. It is also possible to integrate the upper direction change surface and the lower direction change surface into a common direction change surface.

[0127] like Figure 21 to Figure 23 As shown, the direction-changing portion 29 is located at a position that does not hinder the second male portion 6 from sliding on the guide surface 45 of the first male portion 4 and reaching the introduction end 71 of the second female groove 7. Similarly, the direction-changing surface 29a is oriented in a manner that does not hinder the second male portion 6 from sliding on the guide surface 45 of the first male portion 4 and reaching the introduction end 71 of the second female groove 7. Fig.21 As shown, there is a gap between the first male portion 4 and the direction-changing portion 29 (direction-changing surface 29a) that allows at least the second male portion 6 to pass through. The guide surface 45 and the direction-changing surface 29a face each other in a tapered shape in the direction approaching the second strap-cord mounting portion 92, so that the above-mentioned gap gradually decreases toward the second strap-cord mounting portion 92. The guide surface 45 and the direction-changing surface 29a can also adopt other orientations.

[0128] Typically, the first buckle component 1 does not contact the direction-changing surface 29a during the entire process in which the second male portion 6 slides on the guide surface 45 of the first male portion 4. Figures 13 to 15As described above, when the first buckle component 1 and the second buckle component 2 are magnetically coupled, an alignment effect of the first magnet M1 and the second magnet M2 is produced. Therefore, it is possible to avoid the first buckle component 1 from colliding with the direction-changing surface 29a due to inertia when the second male part 6 finishes sliding on the guide surface 45 of the first male part 4. Of course, as long as the second male part 6 can reach the introduction end 71 of the two female grooves 7, the first buckle component 1 can also contact the direction-changing surface 29a when the second male part 6 rotates around the edge 47 of the first male part 4.

[0129] The direction-changing portion 29 protrudes from the second strap-cord mounting portion 92 (e.g., the front wall 24 thereof) in a manner that gradually tapers forward, and typically protrudes from one end (e.g., the left end) in the width direction in a manner that gradually tapers forward. The direction-changing surface 29a is inclined obliquely forward (in a manner that moves away from the center line CL) from one end (e.g., the left end) of the front surface of the second strap-cord mounting portion 92 (e.g., the front wall 24 thereof). If the thickness of the direction-changing surface 29a in the vertical direction is greater than the thickness of the guide surface 45 in the vertical direction, a sufficient contact area with the first buckle component 1 can be ensured.

[0130] The direction-changing surface 29a may be one or more flat surfaces, one or more curved surfaces, or any combination thereof (e.g., a combination of a flat surface and a curved surface). In the illustrated example, the first end 61 of the male portion 6, 6' slides on the direction-changing surface 29a, but is not limited thereto. The first buckle component 1 has other portions that are connected or not connected to the male portion 6, 6', and the other portions may also slide on the direction-changing surface 29a. For example, the first buckle component 1 has a side wall extending from the first end 61 of the male portion 6 or from the vicinity thereof toward the first strap mounting portion 91, and the side wall (or the connection portion between the side wall and the male portion 6) may slide on the direction-changing surface 29a. Other structures may also be used.

[0131] Based on the above teachings, those skilled in the art can make various changes to the various embodiments and features. The reference numerals incorporated into the claims are for reference only and cannot be used for the purpose of limiting the scope of the claims. The direction or density of the magnetic lines of force can also be controlled by combining the yoke with the magnet.

Claims

1. A buckle, comprising: A first buckle component (1) having at least one first female groove (5, 5') extending along the width direction of the first buckle component (1); and a second buckle component (2) having at least one first male portion (4, 4') that can be inserted into the at least one first female groove (5, 5'), wherein the at least one first male portion (4, 4') is inserted into the at least one first female groove (5, 5') to combine the first buckle component (1) and the second buckle component (2), wherein the buckle (9) is characterized in that: The first buckle component (1) and the second buckle component (2) are configured to be magnetically engageable. The at least one first male portion (4, 4') has a guide surface (45), The first buckle component (1) has a sliding portion (62) that slides on the guide surface (45). According to the magnetic attraction between the first buckle component (1) and the second buckle component (2), the sliding portion (62) can slide on the guide surface (45) of the first male portion (4, 4') in a direction opposite to the insertion direction of the at least one first male portion (4, 4') into the at least one first female groove (5, 5').

2. The buckle according to claim 1, characterized in that: After the sliding portion (62) slides on the guide surface (45), the at least one first male portion (4, 4') is automatically inserted into the at least one first female groove (5, 5').

3. The buckle according to claim 1 or 2, characterized in that: One of the first buckle component (1) and the second buckle component (2) includes a first magnet (M1), and the other includes a second magnet or a ferromagnetic body (M2).

4. The buckle according to any one of claims 1 to 3, characterized in that: The first buckle component (1) includes a first magnet (M1), and the second buckle component (2) includes a second magnet (M2). When the first buckle component (1) and the second buckle component (2) are completely coupled, there is a gap (W9) between the magnetic axis (AX1) of the first magnet (M1) and the magnetic axis (AX2) of the second magnet (M2) in the width direction (D1) of the buckle (9).

5. The buckle according to claim 3 or 4, characterized in that: The guide surface (45) is at least partially located on the second magnet (M2).

6. The buckle according to any one of claims 1 to 5, characterized in that: The sliding portion (62) is disposed adjacent to an introduction end (51) of the at least one first female groove (5, 5') for the at least one first male portion (4, 4').

7. The buckle according to any one of claims 1 to 6, characterized in that: The at least one first male portion (4, 4') is a protrusion extending along the width direction of the second buckle component (2).

8. The buckle according to claim 7, characterized in that: The at least one first male portion (4, 4') has an end portion (42) on which the guide surface (45) is formed.

9. The buckle according to any one of claims 1 to 8, characterized in that: The at least one first female groove (5, 5') extends along the width direction of the first buckle component (1).

10. The buckle according to any one of claims 1 to 9, characterized in that: The at least one first male portion (4, 4') and the at least one first female groove (5, 5') extend obliquely in a manner forming an acute angle (θ1, θ4) relative to an axis (L1, L4) parallel to the width direction (D1) of the buckle (9).

11. The belt buckle according to any one of claims 1 to 10, characterized in that: The second buckle component (2) has at least one second female groove (7, 7') extending along the width direction of the second buckle component (2), and the first buckle component (1) has at least one second male portion (6, 6') that can be inserted into the at least one second female groove (7, 7') of the second buckle component (2). The at least one second male portion (6, 6') has the sliding portion (62).

12. The buckle according to claim 11, characterized in that: The first buckle component (1) has a first engaging portion (93), and the first engaging portion (93) includes the at least one first female groove (5, 5') and the at least one second male portion (6, 6'). The second buckle component has a second engaging portion (94), and the second engaging portion (94) includes the at least one first male portion (4, 4') and the at least one second female groove (7, 7'). By the engagement of the first engaging portion (93) and the second engaging portion (94), relative displacement between the first buckle component (1) and the second buckle component (2) in the thickness direction of the buckle (9) is restricted.

13. The buckle according to claim 12, characterized in that: In the first buckle component (1), the at least one second male portion (6, 6') is arranged adjacent to the front side of the at least one first female groove (5, 5'), In the second buckle component (2), the at least one first male portion (4, 4') is arranged adjacent to the front side of the at least one second female groove (7, 7').

14. The buckle according to claim 12 or 13, characterized in that: The first buckle component (1) further comprises a first belt cord mounting portion (91), and the width of the at least one first female groove (5, 5') is defined between the sliding portion (65) and the first belt cord mounting portion (91).

15. The belt buckle according to any one of claims 12 to 14, characterized in that: The second buckle component (2) further comprises a second belt cord mounting portion (92). The width of the at least one second female groove (7, 7') is defined between the at least one first male portion (4, 4') and the second belt and cord mounting portion (92).

16. The buckle according to any one of claims 12 to 15, characterized in that: The first engaging portion (93) includes a receiving portion (31), and the second engaging portion (94) includes an inserting portion (32) to be inserted into the receiving portion (31).

17. The buckle according to claim 16, characterized in that: The insertion portion (32) has a plate-shaped portion (11), and the at least one first male portion (4, 4') includes a plurality of first male portions (4, 4') provided on upper and lower surfaces of the plate-shaped portion (11).

18. The buckle according to claim 16 or 17, characterized in that: The receiving portion (31) comprises an upper plate (81) and a lower plate (82), and the at least one second male portion (6, 6') comprises: a second male portion (6) arranged on the lower surface of the upper plate (81); and a second male portion (6') arranged on the upper surface of the lower plate (82).

19. The buckle according to claim 18, characterized in that: The receiving portion (31) comprises: a front opening (85) including an opening area (85b) whose upper and lower widths (W85b) are reduced by the at least one second male portion (6, 6'); and a side opening (86) spatially connected to the front opening (85).

20. The buckle according to any one of claims 11 to 19, characterized in that: The second buckle component (2) includes a direction conversion portion (29) having a direction conversion surface (29a), wherein the direction conversion surface (29a) intersects with the exit direction of the at least one second male portion (6, 6') from the at least one second female groove (7, 7'). The first buckle component can slide on the direction-changing surface (29a) and rotate in a direction away from the second buckle component (2) in response to movement in the exit direction in order to allow the at least one second male portion (6, 6') to exit from the at least one second female groove (7, 7').

21. The buckle according to any one of claims 1 to 20, characterized in that: The guide surface (45) extends along an axis (L3) that forms an angle within a range of 25° to 75° relative to an axis (L2) parallel to an insertion direction of the at least one first male portion (4, 4') into the at least one first female groove (5, 5').

22. A belt buckle, comprising: A first buckle component (1) having at least one first female groove (5, 5') extending along the width direction of the first buckle component (1); and a second buckle component (2) having at least one first male portion (4, 4') that can be inserted into the at least one first female groove (5, 5'), wherein the at least one first male portion (4, 4') is inserted into the at least one first female groove (5, 5') to combine the first buckle component (1) and the second buckle component (2), wherein the buckle (9) is characterized in that: The first buckle component (1) includes a first magnet (M1), and the second buckle component (2) includes a second magnet (M2). The magnetic axes (AX1, AX2) of the first magnet (M1) and the second magnet (M2) are respectively orthogonal or intersecting with respect to an axis (L2, L5) parallel to an insertion direction of the at least one first male portion (4, 4') into the at least one first female groove (5, 5'), According to the magnetic attraction between the first magnet (M1) and the second magnet (M2) in the radial direction of their respective magnetic axes (AX1, AX2), the at least one first male portion (4, 4') can be automatically inserted into the at least one first female groove (5, 5').

23. The buckle according to claim 22, characterized in that: The at least one first male portion (4, 4') has a guide surface (45), The first buckle component (1) has a sliding portion (62) that slides on the guide surface (45). According to the magnetic attraction force between the first magnet (M1) and the second magnet (M2), the sliding portion (62) slides on the guide surface (45) of the first male portion (4, 4') in a direction opposite to the insertion direction of the at least one first male portion (4, 4') into the at least one first female groove (5, 5').

24. A belt buckle, comprising: A first buckle component (1) having at least one first female groove (5, 5') extending along the width direction of the first buckle component (1); and a second buckle component (2) having at least one first male portion (4, 4') that can be inserted into the at least one first female groove (5, 5'), wherein the at least one first male portion (4, 4') is inserted into the at least one first female groove (5, 5') to combine the first buckle component (1) and the second buckle component (2), wherein the buckle (9) is characterized in that: The at least one first male portion (4, 4') has a guide surface (45), The first buckle component (1) has a sliding portion (62) that slides on the guide surface (45). The sliding portion (62) slides on the guide surface (45) of the first male portion (4, 4') in a direction opposite to the insertion direction of the at least one first male portion (4, 4') into the at least one first female groove (5, 5'), and then the at least one first male portion (4, 4') can be inserted into the at least one first female groove (5, 5').

25. A buckle component, comprising: A belt cord mounting portion (91, 92), a snap-fit ​​portion (93, 94) connected to the belt cord mounting portion (91, 92), and a magnet (M1, M2), wherein the buckle component (1, 2) is characterized in that: The engaging portion (93, 94) comprises: at least one female groove (5, 5', 7, 7') extending along the width direction of the buckle component (1, 2); and at least one male portion (4, 4', 6, 6') adjacent to the at least one female groove (5, 5', 7, 7') on a side of the at least one female groove (5, 5', 7, 7') away from the belt cord mounting portion (91, 92). The at least one male portion (4, 4', 6, 6') is arranged in a manner perpendicular to or intersecting with the magnetic axis (AX1, AX2) of the magnet (M1, M2) when viewed from the thickness direction of the buckle component (1, 2), The at least one male portion (4, 4', 6, 6') has a side surface (45, 65) inclined in a manner close to the belt and cord mounting portion (91, 92) corresponding to the extension along the at least one female groove (5, 5', 7, 7').

26. The buckle component according to claim 25, characterized in that: The side surface (45, 65) is arranged at an end (42, 62) of the at least one male portion (4, 4', 6, 6') in the width direction of the buckle component (1, 2), and the end (42, 62) is located near the center of the buckle component (1, 2) in the width direction.

27. The buckle component according to claim 25 or 26, characterized in that: The side surface (45) extends along an axis (L3, L6) that forms an angle in the range of 25° to 75° relative to an axis (L2, L5) parallel to the insertion direction of the at least one male portion (4, 4', 6, 6') into the at least one female groove (5, 5', 7, 7').

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