CN111683558B - buckle - Google Patents

Abstract

Provided is a buckle with improved freedom of attachment/detachment operation. The buckle comprises a male member and a female member, wherein the male member has a protrusion, the female member has a recess capable of engaging with the male member, the female member has an inclined surface for connecting the surface of the second plate-like base and the recess and guiding the protrusion to the recess, the protrusion has a claw portion, the recess has a claw receiving portion capable of engaging with the claw portion, the contour of the claw receiving portion when the female member is viewed from the front surface side is polygonal or curved, and is projected toward the opposite side of the second belt mounting portion, a magnet is embedded in one of the protrusion and the recess, and a magnet oriented to attract the magnet or a metal attracted to the magnet is embedded in the other.

Description

buckle

technical field

The present invention relates to a belt buckle using a magnet.

Background technique

Conventionally, in order to connect the ends of the belts attached to various articles such as bags, backpacks, clothes, shoes, helmets, sports equipment, and packaging equipment to each other, a male part and a female part that can be freely attached and detached have been used. Buckle that snaps to the ground. In such a belt buckle, it is required that the operation for attaching and detaching is simple on the one hand, and on the other hand, it is required to avoid accidental detachment when it is not intended. Conventionally, in order to satisfy such required characteristics, various buckle structures have been proposed.

In Japanese Patent Application Laid-Open No. 62-119815 (Patent Document 1), there is described a buckle comprising a first coupling member and a second coupling member capable of engaging and disengaging with respect to the first coupling member, and A belt attachment portion is provided at the rear end of the first connecting member and the second connecting member, and the buckle is characterized in that the first connecting member and the second connecting member have opposing surfaces that overlap each other, and the opposing surfaces are formed to Magnetic attraction, and an engagement mechanism for preventing the first coupling member and the second coupling member from sliding in a direction in which they are separated from each other by the pulling of the tape is provided on the opposing surface. In this document, a locking hole formed on one of the opposing surfaces and a locking protrusion inserted into the locking hole are described as the engaging mechanism.

A buckle structure similar to the above-mentioned buckle structure is also described in US Patent No. 7,506,419 (Patent Document 2), Chinese Utility Model No. 205795061 (Patent Document 3), and Chinese Utility Model No. 205214395 (Patent Document 4) recorded.

prior art literature

Patent Literature

Patent Document 1: Japanese Patent Application Publication No. Sho 62-119815

Patent Document 2: Specification of US Patent No. 7,506,419

Patent Document 3: Chinese Utility Model No. 205795061 Specification

Patent Document 4: Chinese Utility Model No. 205214395 Specification

SUMMARY OF THE INVENTION

However, in the conventional buckle structure, the operation for engaging and disengaging the male member and the female member has no degree of freedom, and both the male member and the female member need to be relatively manipulated by a predetermined set method. Therefore, correctness is required for the attaching and detaching operation of the buckle, and the user needs to spend energy on the attaching and detaching operation of the buckle. Although it is considered that there are various demands for a buckle depending on the application, there has not been a buckle focusing on the ease of attachment and detachment operations in the past.

The present invention has been made in view of the above-mentioned circumstances, and one of the objects of the present invention is to provide a buckle with an improved degree of freedom of attachment and detachment operations.

The inventors of the present invention have made earnest studies to solve the above-mentioned problems, and as a result, they have created the present invention exemplified below, which makes good use of the properties of magnets.

[1] A buckle comprising a male member and a female member capable of engaging with the male member,

The male member includes: a first plate-shaped base having a front surface and a back surface; a protruding portion protruding from the back surface of the first plate-shaped base; and at least one extending from one end of the first plate-shaped base and extending in the width direction The first belt mounting portion of the opening,

The female member includes: a second plate-shaped base having a front surface and a back surface; a concave part that is recessed on the surface of the second plate-shaped base and can be engaged with the protruding part; extended from one end of the second plate-shaped base and has at least one open second belt mounting portion extending in the width direction; and an inclined surface connecting the surface of the second plate-like base portion and the recessed portion and guiding the protruding portion toward the recessed portion,

The protruding portion has a claw portion protruding toward at least the first belt mounting portion side,

The recessed portion has a claw receiving portion capable of engaging with the claw portion,

The contour of the claw receiving portion when viewed from the front side of the female member is a polygonal line shape or a curved line shape that protrudes toward the opposite side of the second belt mounting portion,

A magnet is embedded in one of the protruding portion and the recessed portion, and a magnet whose magnetic pole is oriented so as to be attracted by the magnet or a metal attracted by the magnet is embedded in the other.

[2] In the buckle according to [1], the profile of the claw receiving portion when the female member is viewed from the front side is a substantially U-shape or a substantially U-shape with the second belt attaching portion side open.

[3] In the buckle according to [1] or [2], the male member is rotatable about the protruding portion as a rotation axis while maintaining the engagement state in which the claw portion and the claw receiving portion are engaged.

[4] In the buckle according to [3], when the position in which the male member and the female member are engaged so that the first belt attaching portion and the second belt attaching portion are located on opposite sides of each other is the center position, the The male member can rotate within a limited angular range of 90° or less in both directions from the central position with the protrusion direction of the protruding portion as the rotation axis while maintaining the engaged state in which the claw portion and the claw receiving portion are engaged.

[5] In the buckle according to any one of [1] to [4], the length of the recessed portion in the width direction when the female member is viewed from the front side increases as it approaches the second belt attaching portion. It becomes gradually longer, or it is fixed halfway toward the second belt attaching portion, and gradually becomes longer as it approaches the second belt attaching portion.

[6] In the buckle according to any one of [1] to [5], the maximum length in the width direction of the recessed portion when the female member is viewed from the front side is higher than the male member when viewed from the back side The maximum length in the width direction of the projections as seen at the time is 2 mm or more.

[7] In the buckle according to any one of [1] to [6], the recessed portion has a groove-shaped end portion that is open to the second belt attaching portion side.

[8] In the buckle according to any one of [1] to [7], the recessed portion has a first bottom surface and a slope, and the first bottom surface is disposed inside a region defined from the front surface side. A polygonal or curved line-like outline of the claw receiving portion seen when the female member is observed, and an area formed by a straight line connecting both ends of the polygonal line or curved line, and the slope is connected to the first bottom surface and faces The second belt mounting portion rises.

[9] In the buckle according to [8] depending on [7], the recessed portion has a second bottom surface extending from an end portion of the slope on the second belt attaching portion side to the groove-shaped end portion.

[10] In the buckle according to any one of [1] to [9], the protruding portion has a top surface and a slope that is connected to the top surface and descends toward the opposite side of the first belt attachment portion.

[11] In the buckle according to any one of [1] to [10], the inclined surface is formed along the contour of the claw receiving portion when the female member is viewed from the front side.

[12] In the buckle according to any one of [1] to [11], the length of the inclined surface is 0.5 mm or more.

[13] In the buckle according to any one of [1] to [12], the protruding portion has a claw portion protruding only toward the first belt attaching portion side.

[14] An article having the buckle according to any one of [1] to [13].

Invention effect

According to one embodiment of the buckle of the present invention, in the female member (150), there are a surface (161) and a recessed portion (170) that connect the second plate-shaped base portion (160) and serve to direct the protruding portion (120) to the The inclined surface (180) guided by the recessed portion (170), and the protruding portion (120) and the recessed portion (170) are embedded with magnets for mutual attraction. Therefore, the male member (100) and the female member (150) are easily and automatically engaged at appropriate positions when the user approaches the protruding portion (120) and the recessed portion (170) without requiring high-precision alignment. Therefore, the user does not need to spend too much energy on the engaging operation of the buckle.

According to one embodiment of the buckle of the present invention, the protruding portion (120) has a claw portion (126) protruding toward at least the first belt attaching portion (130) side, and the female member (150) is viewed from the surface (161) side. The contour of the obtained claw receiving portion (176) is a polygonal line shape or a curved line shape that protrudes toward the opposite side of the second belt mounting portion (190). Therefore, from the state where the male member (100) is engaged with the female member (150), the male member (100) is separated from the second plate-like base (110) from the back surface of the first plate-shaped base (110) using the claw receiving portion (176) as a fulcrum. The direction of the surface of the plate-shaped base (160) is relatively rotated, and the operation of releasing the engagement by turning over the male member (100) can be realized. Conversely, from the state where the male member (100) is separated from the female member (150), while the male member (100) is inclined with respect to the female member (150), the claw portion (126) is brought into contact with the claw receiving portion (176), Using the claw receiving portion (176) as a fulcrum, the male member (100) is directed in a direction in which the back surface of the first plate-shaped base (110) of the male member (100) approaches the surface of the second plate-shaped base (160) of the female member (150). The operation of engaging the male member (100) with the female member (150) can also be achieved by rotating.

According to one embodiment of the buckle of the present invention, the male member is rotatable relative to the female member while maintaining the engaged state in which the claw portion of the male member and the claw receiving portion of the female member are engaged. In the conventional buckle structure, once the buckle is engaged, it is no longer movable, so there is a risk that an object hits the buckle and breaks. However, by making it rotatable in the engaged state, even in a harsh environment like the outdoors, even if an object collides, the force is released, so a special effect that is difficult to damage can be obtained.

As described above, according to one embodiment of the buckle of the present invention, since a degree of freedom is created in the relative manipulation of both the male member and the female member required for engagement and separation, the attaching and detaching operation of the buckle becomes easier. Simple. Therefore, since there is no need to be too distracted in the operation of the buckle, the user can easily attach and detach the buckle even during other actions such as walking or riding a bicycle.

Furthermore, according to one embodiment of the buckle of the present invention, the male member and the female member are guided by magnetic force to each other to a predetermined engagement position, and there is an effect that the engagement and disengagement are less likely to occur unexpectedly. Therefore, according to one embodiment of the buckle of the present invention, for example, the basic performance of the buckle that the male member and the female member are not accidentally engaged and detached can be ensured by magnetic force, and the attaching and detaching operation of the buckle can be easily performed.

Description of drawings

1-1 is a perspective view of the male member of the buckle according to the first embodiment of the present invention when viewed from the front side.

1-2 is a perspective view of the male member of the buckle according to the first embodiment of the present invention as seen from the back side.

Fig. 2-1 is a perspective view of the female member of the buckle according to the first embodiment of the present invention when viewed from the front side.

2-2 is a perspective view of the female member of the buckle according to the first embodiment of the present invention as seen from the back side.

3 is a perspective view when the male member and the female member of the buckle according to the first embodiment of the present invention are engaged with each other.

Fig. 4-1 shows an example of a state in the middle of engaging the male member and the female member of the buckle according to the first embodiment of the present invention, Fig. 4-1 (a) is a side view, and Fig. 4-1 (b) ) is a sectional view showing its internal structure.

Fig. 4-2 shows another example of a state in the middle of engaging the male member and the female member of the buckle according to the first embodiment of the present invention, Fig. 4-2 (a) is a side view, Fig. 4-2 ( b) is a sectional view showing its internal structure.

Fig. 5 is a perspective view of the male member (100) of the buckle according to the second embodiment of the present invention, as seen from the back side.

6 is a perspective view of the female member ( 150 ) of the buckle according to the second embodiment of the present invention, when viewed from the front side.

7 is a perspective view of the female member of the buckle according to the third embodiment of the present invention as seen from the front side.

Detailed ways

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to these embodiments.

<1. First Embodiment>

Fig. 1-1 shows a perspective view of the male member (100) of the buckle (10) according to the first embodiment of the present invention when viewed from the surface (111) side. Fig. 1-2 shows a perspective view of the male member ( 100 ) of the buckle ( 10 ) according to the first embodiment of the present invention as viewed from the back ( 112 ) side. Fig. 2-1 shows a perspective view of the female member (150) of the buckle (10) according to the first embodiment of the present invention when viewed from the surface (161) side. FIG. 2-2 shows a perspective view of the female member ( 150 ) of the buckle ( 10 ) according to the first embodiment of the present invention when viewed from the back side ( 162 ). FIG. 3 shows a perspective view when the male member (100) and the female member (150) of the buckle (10) according to the first embodiment of the present invention are engaged with each other.

(1-1. Overall structure)

The male member (100) of the buckle (10) of the present embodiment includes: a first plate-shaped base (110) having a front surface (111) and a back surface (112); The protrusion (120) of (112); and the first belt mounting portion (130) extending from one end of the first plate-like base (110) and having at least one opening (131) extending in the width direction.

The female member (150) of the buckle (10) of the present embodiment is provided with: a second plate-shaped base (160) having a front surface (161) and a back surface (162); and the surface of the second plate-shaped base (160) is recessed (161) a concave portion (170) capable of engaging with the protruding portion (120); a second plate-shaped base portion (160) extending from one end of the second plate-shaped base portion (160) and having at least one opening (191) extending in the width direction A belt mounting part (190); and an inclined surface (180) for connecting the surface (161) of the second plate-like base (160) and the recessed part (170) and for guiding the protruding part (120) to the recessed part (170) .

In the female member ( 150 ) of the buckle ( 10 ) of the present embodiment, a magnet ( 128 ) is embedded in one of the protruding portion ( 120 ) and the recessed portion ( 170 ), and a magnet ( 128 ) is embedded in the other so as to be attracted by the magnet. A magnet or metal (128) that will be attracted by the magnet whose poles are oriented in the manner of the above. According to the buckle (10) of the present embodiment, the magnet embedded in the male member (100) or the metal (128) attracted by the magnet, and the magnet embedded in the female member (150) or the metal attracted by the magnet (128) can be attracted to each other through the first bottom surface (172) of the recessed portion (170) of the female member (150).

The material of the male member ( 100 ) and the female member ( 150 ) is not particularly limited, and other than metals, for example, synthetic resins such as polyacetal (POM), nylon, and polybutylene terephthalate (PBT) may be used. The male part (100) and the female part (150) can be manufactured by methods such as injection molding and die casting, respectively.

In the present embodiment, the protruding portion (120) of the male member (100) has a claw portion (126) protruding toward at least the first belt mounting portion (130). From the viewpoint of improving the freedom of movement of the male member (100), it is preferable that the claw portion (126) protrudes only to the side of the first belt mounting portion (130). On the other hand, an upright wall (129) vertically descending from the top surface (122) to the back surface (112) is formed on the side portion of the protruding portion (120) opposite to the first tape mounting portion (130).

The recessed portion (170) of the female member (150) has a claw receiving portion (176) capable of engaging with the claw portion (126). The contour of the claw receiving portion (176) seen when the female member (150) is viewed from the surface (161) side can be a polygonal line or curved line protruding toward the opposite side of the second belt mounting portion (190). In the present embodiment, the contour of the claw receiving portion (176) is a polygonal line, and is substantially U-shaped formed by three line segments and two corners. The contour of the pawl receiving portion (176) may be a polygonal line formed by more corners and line segments than in the present embodiment.

The first belt mounting portion (130) has at least one opening (131) extending in the width direction, preferably two openings (131). The length of the strap can be adjusted by inserting the strap through the opening and winding the strap (not shown) around the first strap attaching portion (130). The second belt mounting portion (190) also has at least one opening (191) extending in the width direction, preferably two openings (191). The length of the strap can be adjusted by inserting the strap through the opening and winding the strap (not shown) around the second strap attaching portion (190).

(1-2. Inclined surface)

The female member ( 150 ) of the buckle ( 10 ) of the present embodiment has a surface ( 161 ) and a recessed portion ( 170 ) connecting the second plate-shaped base portion ( 160 ) and guides the protruding portion ( 120 ) to the recessed portion ( 170 ). 170) of the inclined surface (180). When the protruding part (120) is brought close to the recessed part (170) to engage the two, even if the position of the protruding part (120) is slightly shifted from the position of the recessed part (170), due to the existence of the inclined surface (180) , the protrusions (120) are also guided toward the recesses (170). Therefore, the degree of freedom of the operation of engaging the protruding portion (120) with the recessed portion (170) is improved.

For example, as shown in FIG. 4-1, it can be understood that even if the position of the protruding portion (120) of the male member (100) is slightly shifted, the claw portion (126) comes into contact with the inclined surface (180) of the female member (150). , the male member (100) is also guided toward the recessed portion (170) while sliding on the inclined surface (180).

Preferably, the inclined surface (180) is formed along the contour of the claw receiving portion (176) when the female member (150) is viewed from the surface (161) side. More preferably, the inclined surface (180) is formed along the entire contour of the claw receiving portion (176) when the female member (150) is viewed from the surface (161) side. As a result, the area for guiding the protruding portion (120) to the recessed portion (170) is enlarged, so that the degree of freedom of operation for engaging the protruding portion (120) with the recessed portion (170) is further improved.

The inclined surface defined in the present invention differs from the chamfer in that it has a function of guiding the protruding portion to the recessed portion. In the past, the chamfering may be formed for the purpose of improving the feeling of touch or the like, but it is not for the purpose of guiding the protruding portion, and does not have a function of guiding the protruding portion to the recessed portion.

When the length of the inclined surface (180) is long, it is easier to guide the male member (100) smoothly, so the length of the inclined surface (180) is preferably 0.5 mm or more, more preferably 1 mm or more, and still more preferably 1.5 mm or more. However, if the inclined surface (180) is too long, the inclination angle tends to be small, and the guiding effect of the protruding portion (120) is weakened. Therefore, the length of the inclined surface ( 180 ) is preferably 10 mm or less, more preferably 9 mm or less, and further preferably 8 mm or less.

In this specification, the inclined surface (180) is measured as the length in the normal direction of the tangent to the boundary line between the surface (161) of the second plate-shaped base (160) of the female member (150) and the inclined surface (180). )length. The starting point of the inclined surface (180) is a point at which the surface (161) of the second plate-like base (160) begins to incline toward the recessed portion (170). The end point of the inclined surface (180) is the point where the inclination angle of the inclined surface (180) becomes 90° with respect to the surface (161) of the second plate-like base (160). The inclined surface (180) reaches the bottom surface (172, 173) or the slope (174) of the recess (170) before the inclination angle of the inclined surface (180) becomes 90° with respect to the surface (161) of the second plate-like base (160). ), the end point of the inclined surface (180) is the point where the bottom surface or the slope is reached. When the inclined surface (180) reaches the pawl receiving portion (176) before the inclination angle of the inclined surface (180) becomes 90° with respect to the surface (161) of the second plate-like base (160), the end point of the inclined surface (180) is Arrive at the position of the claw receiving part (176).

In order to easily guide the protruding portion (120) of the male member (100) to the recessed portion (170), the average inclination angle of the inclined surface (180) of the second plate-like base (160) with respect to the surface (161) is preferably 10° ~80°, more preferably 20° to 70°, further preferably 30° to 60°. The average inclination angle of the inclined surface (180) refers to the angle formed by a straight line connecting the start point of the inclined surface (180) and the end point of the inclined surface (180) and the surface (161) of the second plate-shaped base (160).

(1-3. Assembly and disassembly operation)

The attachment and detachment operation of the buckle (10) of this embodiment is demonstrated.

First, the protruding portion (120) can be moved in the protruding direction and inserted into the recessed portion (170), so that the claw portion (126) of the protruding portion (120) and the claw receiving portion (176) of the recessed portion (170) can be moved. ) to engage this operation. By performing this operation in reverse, the operation of releasing the engagement can be performed.

Second, according to the buckle (10) of the present embodiment, when the female member (150) is viewed from the surface (161) side, the claw receiving portion (176) expands to the opposite side of the second belt mounting portion (190). Since the protruding polygonal linear shape (even if it is a curved linear shape, the same effect can be obtained), there is no claw receiving part (176) on the side of the second belt mounting part (190). Therefore, from the state where the male member (100) is engaged with the female member (150), the male member (100) is separated from the second plate toward the back of the first plate-shaped base (110) using the claw receiving portion (176) as a fulcrum. The direction of the surface of the shaped base (160) is relatively rotated, and the operation of disengaging the engagement can be easily performed by turning over the male member (100). In addition, in a state where the male member (100) is inclined relative to the female member (150), the claw portion (126) is brought into contact with the claw receiving portion (176), and the male member (100) is made to use the claw receiving portion (176) as a fulcrum The male member (100) can also be rotated relative to the direction in which the back surface of the first plate-shaped base (110) of the male member (100) approaches the surface of the second plate-shaped base (160) of the female member (150). The operation of engaging with the female part (150).

It is preferable for fingers to easily enter the back surface (112) of the end of the first plate-like base (110) on the opposite side to the first tape mounting portion (130) when the male member (100) is turned over by hand. The end is provided with a curved portion (114) protruding toward the surface (111) side of the male member (100).

Furthermore, in the present embodiment, the recessed portion (170) has a groove-shaped end portion (178) that is open to the second belt mounting portion (190) side. Thereby, by sliding the protruding portion (120) engaged with the recessed portion (170) in the direction of the second belt attaching portion (190), the engagement of the protruding portion (120) from the recessed portion (170) can be disengaged, The operation of the protrusion (120) passing through the grooved end (178) and out of the recess (170). In addition, the protruding portion (120) can also be moved into the recessed portion (170) by sliding it from the groove-shaped end portion (178) in the opposite direction of the second belt mounting portion (190) and engaged with the recessed portion (170). this operation.

(1-4. Mobility in the engaged state)

In the buckle (10) of the present embodiment, the male member (100) can rotate around the protrusion (120) while maintaining the engaged state in which the claw portion (126) is engaged with the claw receiving portion (176). The shaft rotates within a limited angular range. Specifically, according to the buckle (10) of the present embodiment, the claw portion (126) protrudes toward the first belt attachment portion (130), while the claw receiving portion (176) faces the second belt attachment portion (190). ) expands into a convex polygonal line on the opposite side. Therefore, when the male member (100) and the female member (150) are engaged so that the first belt mounting portion (130) and the second belt mounting portion (190) are the farthest from each other, in other words, the two are located on opposite sides of each other. is the central position, the male member (100) can be rotated on the claw receiving portion ( 176) in both directions.

The rotatable angle of the male member (100) is preferably 30° or more in both directions from the central position, more preferably 45° or more, and further preferably 60° or more. In addition, the angle at which the male member (100) can turn is preferably 90° or less in both directions from the central position. From this point of view, it is preferable that the contour of the claw receiving portion (176) seen from the surface (161) side of the female member (150) be roughly U-shaped or roughly U-shaped with the second belt mounting portion (190) side open. shape. As a result, the rotatable angular range of the claw portion (126) is increased, and the claw portion (126) can be rotated approximately 90° in both directions from the central position.

(1-5. Operability)

In the buckle (10) of the present embodiment, the length in the width direction of the recessed portion (170) seen when the female member (150) is viewed from the surface (161) side is halfway toward the second belt attachment portion (190). is fixed and further gradually lengthens as it approaches the second belt mount (190). In other words, the length in the width direction of the recessed portion (170) becomes shorter as the distance from the second tape attachment portion becomes shorter, and becomes fixed from the middle. Thereby, it becomes easy to insert the protrusion part (120) into the recessed part (170). In addition, after the protruding part (120) is inserted into the recessed part (170), the male part (100) and the female part (150) are manipulated in the direction of pulling apart from each other, so that the protruding part (120) can be easily guided to the recessed part the proper engagement position of the part (170).

In a preferred embodiment, the maximum length in the width direction of the recessed portion (170) viewed from the front (161) side of the female member (150) is larger than that seen from the back (112) side of the male member (100) The maximum length of the protruding portion (120) in the width direction is longer than 2 mm. If the difference between the maximum length in the width direction of the recessed portion (170) and the maximum length in the widthwise direction of the protruding portion (120) is large, it is easier to insert the protruding portion (120) into the recessed portion (170). However, if the difference between the lengths is too large, the protruding portion (120) is easily disengaged from the recessed portion (170). The optimum value of the difference in length varies depending on the size of the buckle, but in the case of a normal-sized buckle (the length in the width direction is about 200 to 500 mm), it is preferably 2 to 300 mm, and more preferably 10 to 200 mm. .

In the buckle (10) of the present embodiment, the recessed portion (170) has a first bottom surface (172), and the first bottom surface (172) is arranged inside a region defined by the subsurface (161) The outline of the claw receiving portion (176) in the shape of a polygonal line (the same effect can be obtained even in the shape of a curved line) when the female member (150) is viewed from the side, and the region formed by the straight line obtained by connecting both ends of the polygonal line and a slope (174) connected to the first bottom surface (172) and rising toward the second belt mounting portion (190). As shown in Fig. 4-2, when the protruding portion (120) of the male member (100) is brought into contact with the slope (174), the male member (100) is pushed toward the recessed portion (170) while sliding on the slope (174). guide. Therefore, this structure facilitates sliding the claw portion (126) of the protruding portion (120) in the direction opposite to the second belt mounting portion (190) and in the direction of the claw receiving portion (176) of the recessed portion (170). Move smoothly.

If the inclination angle of the slope (174) with respect to the first bottom surface (172) is small, the relative sliding operation of the male member and the female member can be smoothly performed, so the inclination angle of the slope (174) relative to the first bottom surface (172) is preferably 70° or less, more preferably 60° or less. However, if the inclination angle of the slope (174) with respect to the first bottom surface (172) is too small, the male member and the female member are likely to be accidentally engaged and disengaged. Therefore, it is preferably 20° or more, more preferably 30° or more.

In the buckle (10) of the present embodiment, the recessed portion (170) has a second bottom surface extending from the end portion of the slope (174) on the second belt mounting portion (190) side to the groove-shaped end portion (178) (173). The presence of the second bottom surface (173) enables the protruding portion (120) to slide through the groove-shaped end portion (178), thereby smoothly engaging or releasing the engagement with the recessed portion (170).

(1-6. Magnet)

In the buckle (10) of the present embodiment, a magnet (128) is embedded in one of the protruding portion (120) and the recessed portion (170), and a magnet (128) is embedded in the other side so that the magnetic pole is attracted by the magnet. Oriented magnets or metals that are attracted to magnets (128). In the figure, magnets or metals (128) that are attracted to the magnets are indicated by dashed lines. According to this configuration, when the male member (100) and the female member (150) are close to each other to a certain extent, even if the positional relationship is slightly shifted, both can be automatically guided to the appropriate engagement position by magnetic force. In addition, since the male member (100) and the female member (150) are attracted together by the magnetic force, the effect of preventing accidental engagement and disengagement can be obtained.

In this way, the buckle (10) of the present embodiment has a degree of freedom in the attaching and detaching operation of the buckle, and further, high accuracy is not required for the operation. Furthermore, by using the magnet, the male member and the female member are unlikely to be accidentally engaged and disengaged from each other, and the male member and the female member are automatically guided to an appropriate engagement position.

There is no particular limitation on the method of burying a magnet or a metal (128) attracted by the magnet (hereinafter, for convenience, the two are collectively referred to as "magnet etc.") in the protruding portion (120) of the male member (100). Referring to FIG. 1-1, in the present embodiment, before embedding the magnet or the like, a cylindrical bottomed portion extending from the top surface (122) of the protruding portion (120) to the root direction of the protruding portion (120) is formed hole. In addition, an opening (123) communicating with the bottomed hole is formed on the side of the protruding portion (120) before embedding the magnet or the like. When a molten resin flows into the bottomed hole from the top surface (122) side of the protrusion (120) in a state where a cylindrical magnet or the like is arranged in the bottomed hole, the magnet and the like are filled with the resin. Gap with bottomed holes. In addition, an opening (123) is provided on the side of the protruding portion (120), whereby the resin reaches the opening (123). If the resin is cured in this state, the resin will be hooked to the opening (123) like a hook, so that the protrusion (120) is difficult to come out from the cured resin, and the magnet (128) is difficult to pull out.

There is also no limitation on the method of burying a magnet or the like in the recessed portion (170) of the female member (150). 2-2, in the present embodiment, a bulging portion (164) is formed on the rear surface (162) of the female member (150) at a position corresponding to the first bottom surface (172) of the recessed portion (170). A bottomed hole is formed on the top surface (165) of the bulging portion (164) before embedding the magnet or the like. Before burying the magnet or the like, an opening (163) communicating with the bottomed hole is formed on the side portion of the bulging portion (164). When the molten resin flows into the bottomed hole from the top surface (165) side of the bulging portion (164) in a state where a cylindrical magnet or the like is arranged in the bottomed hole, the magnet or the like is filled with the resin. Clearance with bottomed hole. Moreover, since the opening (163) is provided in the side part of the bulging part (164), resin reaches the opening (163). If the resin is cured in this state, the resin will be hooked to the opening (163) like a hook, so that the cured resin is hard to come out from the bulge (164), and the magnet (128) is hard to be pulled out. .

As a resin suitable for embedding a magnet etc., an epoxy resin, a polyvinyl acetate resin, a vinyl acetate resin, an acrylic resin, etc. are mentioned, for example.

<2. Second Embodiment>

FIG. 5 shows a perspective view of the male member ( 100 ) of the buckle according to the second embodiment of the present invention when viewed from the back side. FIG. 6 shows a perspective view of the female member ( 150 ) of the buckle according to the second embodiment of the present invention when viewed from the front side. In FIGS. 5 and 6 , components denoted by the same reference numerals as those in the first embodiment denote the same components as those in the first embodiment, and detailed descriptions thereof are omitted. Hereinafter, the difference between the second embodiment and the first embodiment will be described.

In the buckle (10) of the present embodiment, the protruding portion (120) has a top surface (122) and a slope (124) which is connected to the top surface (122) and descends toward the opposite side of the first belt attachment portion (130). ). Similar to the slope ( 174 ) of the recessed portion ( 170 ) described in the first embodiment, the slope ( 124 ) also contributes to the direction of the claw portion ( 126 ) of the protruding portion ( 120 ) toward the second belt mounting portion ( 190 ). While sliding in the opposite direction of the recessed portion (170), it moves smoothly in the direction of the claw receiving portion (176) of the recessed portion (170). In addition, it contributes to the smoothness of the operation of releasing the engagement by sliding the protruding portion (120) engaged with the recessed portion (170) in the direction of the second belt mounting portion (190).

If the inclination angle of the slope (124) relative to the top surface (122) is small, the relative sliding operation of the male member and the female member can be performed more smoothly, so the inclination angle of the slope (124) relative to the top surface (122) is preferably 70° ° or less, more preferably 60° or less. However, if the inclination angle of the slope (124) relative to the top surface (122) is too small, the male part and the female part are likely to be accidentally engaged and disengaged, so the inclination angle of the slope (124) relative to the top surface (122) is preferably It is 20 degrees or more, and it is more preferable that it is 30 degrees or more.

The above-mentioned slope may be formed only on one of the protruding portion (120) and the recessed portion (170), but may be formed on both the protruding portion (120) and the recessed portion (170).

In the buckle (10) of the present embodiment, the contour of the claw receiving portion (176) when the female member (150) is viewed from the surface (161) side is convex toward the opposite side of the second belt mounting portion (190). Curved line out. As a curved line shape, a substantially U shape is mentioned, for example.

Also in the buckle (10) of the present embodiment, the male member (100) can rotate around the protrusion (120) while maintaining the engaged state in which the claw portion (126) is engaged with the claw receiving portion (176). The shaft rotates within a defined angular range. Since the contour of the pawl receiving portion (176) is curved, the male member (100) can be rotated more smoothly.

In the buckle (10) of the present embodiment, the length in the width direction of the recessed portion (170) seen when the female member (150) is viewed from the surface (161) side increases as it approaches the second belt attachment portion (190). gradually lengthened. In other words, the length in the band width direction of the recessed portion (170) becomes shorter as the distance from the second tape mounting portion becomes shorter. According to this configuration, similarly to the first embodiment, it is easy to insert the protrusion (120) into the recess (170). In addition, after the protruding portion (120) is inserted into the recessed portion (170), the male member (100) and the female member (150) are manipulated in the direction of pulling apart from each other, whereby the protruding portion (120) can be easily guided to the proper engagement position of the recessed portion (170).

<3. Third Embodiment>

FIG. 7 shows a perspective view of the female member ( 150 ) of the buckle according to the third embodiment of the present invention when viewed from the front side. In FIG. 7 , components shown with the same reference numerals as those in the first embodiment represent the same components as those in the first embodiment, and detailed descriptions thereof are omitted. In addition, since the male member (100) of the buckle of 3rd Embodiment is the same as that of 1st Embodiment, the description is abbreviate|omitted.

The female part (150) of the third embodiment has no slopes (124, 174), which is different from the female part of the second embodiment, and other structures are the same as the female part of the second embodiment. In the female member (150) of the buckle according to the third embodiment, the end of the first bottom surface (172) on the second belt mounting portion (190) side is connected to the first bottom surface instead of the slope (174). (172) Vertically erected upright walls (175). The upper end of the upright wall (175) is connected to the second bottom surface (173).

According to the buckle of the present embodiment, even if the male member (100) and the female member (150) are to be relatively moved in the approaching direction, the upright wall (129) formed on the protrusion (120) of the male member (100) and the upright wall (129) formed on the protruding portion (120) of the male member (100) The upright wall (175) of the recessed portion (170) of the female member (150) also abuts against and hinders its movement. In the buckle of the present embodiment, in order to perform the operation of sliding the protrusion (120) engaged with the recessed portion (170) in the direction of the second belt attaching portion (190) to release the engagement, it is necessary to make the male The top surface (122) of the protrusion (120) of the part (100) goes over the upstanding wall (175) of the female part (150). In this way, in the present embodiment, it is difficult to slide the male member (100) and the female member (150) in the approaching direction, and the effect of preventing the two from being accidentally engaged and disengaged is high.

Industrial Applicability

The buckle of the present invention can be applied to various articles for which the operation of connecting and separating the ends of the straps is required. For example, in addition to belt products such as bags, backpacks, key chains, packaging equipment, belts, shoulder straps, military belts (combat belts), etc., it can also be applied to a variety of clothing, PFD (life jackets), helmets, sports goods, shoes, etc. the belt part of the item.

Description of reference numerals

10 Buckle

100 male parts

110 first plate base

111 Surface of the first plate-like base

112 Back of the first plate base

114 Bend

120 Protrusions

122 Top

123 Openings

124 slopes

126 claws

128 Magnets or metals that will be magnets

129 Upright Wall

130 First belt mounting part

131 Opening

150 female parts

160 Second plate base

161 The surface of the second plate-like base

162 Back of the second plate base

163 Openings

164 Bulge

165 Top

170 Recess

172 First bottom surface

173 Second bottom surface

174 Ramp

175 Upright Wall

176 Claw receiving part

178 Slotted end

180 Slope

190 Second belt installation part

191 openings.

Claims (14)

1. A buckle comprising a male member (100) and a female member (150) engageable with the male member,

the male member (100) is provided with: a first plate-like base (110) having a front surface (111) and a back surface (112); a protrusion (120) that protrudes from the back surface (112) of the first plate-like base (110); and a first band attaching part (130) extending from one end of the first plate-like base part (110) and having at least one opening (131) extending in the band width direction,

the female member (150) is provided with: a second plate-like base (160) having a front surface (161) and a back surface (162); a recessed part (170) which is recessed in the surface (161) of the second plate-like base (160) and can be engaged with the protruding part (120); a second belt mounting portion (190) extending from one end of the second plate-like base portion (160) and having at least one opening (191) extending in the belt width direction; and an inclined surface (180) for connecting the surface (161) of the second plate-like base (160) and the recessed portion (170) and guiding the protruding portion (120) to the recessed portion (170),

the protrusion (120) has a claw portion (126) protruding at least toward the first belt mounting portion (130),

the recessed part (170) has a claw receiving part (176) capable of engaging with the claw part (126),

the contour of the pawl receiving portion (176) when the female member (150) is viewed from the surface (161) side is polygonal or curved and protrudes toward the opposite side of the second strap attaching portion (190),

a magnet (128) is embedded in one of the protrusion (120) and the recess (170), and a magnet having a magnetic pole oriented so as to be attracted by the magnet or a metal (128) attracted by the magnet is embedded in the other of the protrusion (120) and the recess (170).

2. The buckle according to claim 1,

the contour of the pawl receiving portion (176) viewed from the surface (161) side of the female member (150) is approximately コ -shaped or approximately U-shaped with the second tape mounting portion (190) side opened.

3. The buckle according to claim 1 or 2,

the male member (100) is rotatable about the protrusion (120) as a rotation axis while maintaining the engagement state in which the claw section (126) is engaged with the claw receiving section (176).

4. The buckle according to claim 3,

when the position where the male member (100) and the female member (150) are engaged so that the first belt mounting portion (130) and the second belt mounting portion (190) are positioned on opposite sides of each other is set as a central position, the male member (100) can be rotated within a limited angle range of 90 DEG or less in both directions from the central position with the protruding direction of the protruding portion (120) as a rotation axis, while maintaining the engaged state where the pawl portion (126) is engaged with the pawl receiving portion (176).

5. The buckle according to any one of claims 1 to 4,

the length of the recessed portion (170) in the belt width direction when the female member (150) is viewed from the surface (161) side is gradually increased as it approaches the second belt attachment portion (190), or is fixed to the middle of the second belt attachment portion (190) and is further gradually increased as it approaches the second belt attachment portion (190).

6. The buckle according to any one of claims 1 to 5,

the maximum length of the recessed portion (170) in the width direction when the female member (150) is viewed from the front surface (161) side is longer than the maximum length of the protruding portion (120) in the width direction when the male member (100) is viewed from the rear surface (112) side by 2mm or more.

7. The buckle according to any one of claims 1 to 6,

the recessed portion (170) has a groove-shaped end portion (178) that opens toward the second belt attachment portion (190).

8. The buckle according to any one of claims 1 to 7,

the recessed section (170) has a first bottom surface (172) and a slope (174), the first bottom surface (172) is disposed inside a region formed by a polygonal or curved contour of the pawl receiving section (176) when the female member (150) is viewed from the surface (161) side and a straight line connecting both ends of the polygonal or curved line, and the slope (174) is connected to the first bottom surface (172) and rises toward the second tape attachment section (190).

9. The buckle according to claim 8, as dependent on claim 7,

the recessed portion (170) has a second bottom surface (173) extending from the end of the slope (174) on the second tape mounting portion (190) side to the groove-like end (178).

10. The buckle according to any one of claims 1 to 9,

the protrusion (120) has a top surface (122) and a slope (124), and the slope (124) is connected to the top surface (122) and descends toward the opposite side of the first belt attachment section (130).

11. The buckle according to any one of claims 1 to 10,

the inclined surface (180) is formed along the contour of the pawl receiving portion (176) as viewed from the surface (161) side of the female member (150).

12. The buckle according to any one of claims 1 to 11,

the length of the inclined surface (180) is more than 0.5 mm.

13. The buckle according to any one of claims 1 to 12,

the protrusion (120) has a claw portion (126) protruding only toward the first tape mounting portion (130).

14. An article having the buckle of any one of claims 1-13.

Images