WO2011115267A1 - Buckle - Google Patents

Abstract

Disclosed is a buckle that is adequate for use with a strap that runs diagonally across the surface of a human body. The buckle (1) comprises a female member (2) and a male member (3) that can be attached to/detached from said female member (2). The aforementioned female member (2) has an insertion opening (21) that fits with the end of the male member, has a pair of lock openings (22) at the sides thereof, and has a connection section (23) at the back end thereof that is for connecting to the strap. The aforementioned male member (3) has two engaging protrusions (31) at the front section thereof, has a base section (33) at the back section thereof that supports these protrusions, and the base section has connection sections (35, 36) that are for connecting to the strap. The aforementioned female member (2) and the aforementioned male member (3) contort in the diagonal direction, forming a height difference (H).

Description

buckle

The present invention relates to a buckle. In particular, the present invention relates to a buckle suitable for a strap that is attached obliquely from the shoulder to the waist via a chest, such as a rucksack or a school bag.

ス ト ラ ッ プ Unlike the waist belt, the strap of the above type runs diagonally on the surface of the body, so that a normal flat buckle will have a portion that strikes strongly and a portion that hardly hits. Therefore, the corner part of the buckle may hit the body partly strongly, giving the wearer discomfort.

In order to eliminate such defects, a curved buckle has been devised. For example, Japanese Utility Model Publication No. 61-184408 is known as a buckle for tightening a chin strap of a helmet.

A buckle curved so as to draw an arc is suitable for a chin strap or a waist belt, but is still insufficient as a strap buckle of the type described above.

The present invention is intended to solve this problem and provide a buckle suitable for a strap that runs diagonally on the surface of a human body.

The present invention is a buckle comprising a female member and a male member that can be attached to and detached from the female member, the female member having an insertion opening that fits with the male member at the tip, and a pair of locking openings on the side. And the rear end has a connection portion for connecting to the strap, and the male member has two engaging protrusions that engage with the locking opening at the front portion, and these at the rear portion. A base for supporting the engaging protrusions of the base, and the base has a connection for connecting to the strap, and the female member and the male member are twisted in a diagonal direction to generate a height difference. It is characterized by.

Preferably, the difference in height between the highest position and the lowest position in the diagonal direction caused by the twist is 1.2 to 4 times, more preferably 1.3 to 2 times the thickness of the buckle.

Expressing the twist caused by the difference in height as an angle, the twist of the female member is 8 to 12 degrees, preferably 9 to 11 degrees, most preferably about 10 degrees, and the twist of the male member is -2 to -6 degrees, preferably -3 to -5 degrees, most preferably -4 degrees, in the assembled state, 10 to 18 degrees, preferably 11 to 16 degrees, and most preferably about 14 degrees.

The buckle thus twisted may not enter smoothly when the male member and the female member are engaged. In order to avoid this and make the slide movement natural, it is preferable to provide a guide member. Such a guide member is, for example, a groove extending in the sliding direction provided on one member and a complementary shape ridge provided on the other member.

Preferably, there is provided an erroneous operation preventing means for preventing the male member from being inserted into the female member by being upside down. The erroneous operation preventing means is, for example, a hook provided on the inner surface of one of the male and female members.

Preferably, the lateral side contour of the buckle is inclined toward the twist direction so that the left and right sides are asymmetrical.

Since the buckle of the present invention is twisted in the diagonal direction as a whole, it easily follows along the surface of the human body and hits the human body evenly, so that it is possible to avoid a situation where only the corner part hits the body strongly. Moreover, since the buckle of this invention exhibits a unique external appearance, it can stimulate a consumer's curiosity.

In particular, by making the difference in height between the highest and lowest diagonal positions caused by the twist to be 1.2 to 4 times the thickness of the buckle, it becomes easier to follow the surface of the human body.

Furthermore, by twisting the outer side profile of the buckle in the direction of twisting and making the left and right asymmetrical, the twisting is emphasized and the unique appearance is further emphasized.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

It is a perspective view of the rucksack which attached the buckle which concerns on 1st Example of this invention. (A) of the buckle which concerns on 1st Example of this invention is a top view, (b) is a side view, (c) is a left view, (d) is a right view. It is a side view when it is going to engage the male-female member of the buckle which concerns on 1st Example of this invention. It is a perspective view of the buckle which concerns on 2nd Example of this invention. (A) of the buckle which concerns on 2nd Example of this invention is a top view, (b) is a side view, (c) is a left view, (d) is a right view. It is a side view when it is going to engage the male and female member of the buckle which concerns on 2nd Example of this invention.

In the embodiment of FIG. 1, the buckle 1 of the present invention is used for a pair of straps 5 such as a rucksack 4 and a school bag that are attached obliquely from the shoulder to the waist via the chest. Except for the features of the present invention, this type of buckle is well known (see, for example, JP 2001-346612 A).

As shown in FIG. 3, the buckle 1 includes a female member 2 and a male member 3 that can be attached to and detached from the female member 2. Both are molded of synthetic resin.

The female member 2 has a flat box shape as a whole, but has an insertion opening 21 that fits with the male member 3 at the front end, a pair of locking openings 22 at the side, and a strap 5 at the rear end. It has a connection part (mounting groove) 23 for connection.

The male member 3 has two engaging projections 31 such as crab claws and one guide projection 32 in the front half, and a rectangular base 33 that supports these projections in the rear half. A bulging portion 34 is formed at the tip of the engaging protrusion 31. The base portion 33 is provided with connecting portions (mounting grooves) 35 and 36 for connecting to the strap. There are two mounting grooves, and the strap length can be adjusted here.

When the male member 3 is inserted into the distal end opening of the female member 2 and the male and female members are coupled, the engaging protrusion 31 of the male member 3 having a spring action engages with the locking opening 22 of the female member, and the coupling between the two is sure. It will be something. To release the connection between the two, the bulging portion 34 of the male member exposed from the locking opening 22 of the female member is pushed inward with a finger to suppress the spring action of the engaging protrusion, and then the two are pulled. You can release them.

The feature of the present invention is that the entire buckle is not flat but twisted in a diagonal direction. That is, in the plan view of FIG. 2A, the upper left portion is lowered and the lower right portion is raised. This can be clearly seen from the side view of FIG. 2B, (c) the left side view, and (d) the right side view.

The degree of twist can be expressed by the height difference H (FIG. 2B) between the highest position and the lowest position. The height difference H is preferably about 1.2 to 4 times the thickness of the buckle, and more preferably 1.5 to 3 times.

The buckle of the above embodiment is a right type that is easy to attach to the right position of the human body, and the left type that is easy to attach to the left position can be manufactured by using parts symmetrical to the right type. However, if only one type is desired, for example, only the right type can be used, and when using the left side, the right type can be used upside down.

4 to 6 show a second embodiment of the present invention. Since it is very similar to the first embodiment as a whole, parts corresponding to the first embodiment are denoted by “A” to the reference numerals of the embodiment, and detailed description thereof is omitted.

The second embodiment is different from the first embodiment in that guide members are provided on both the male and female members so that the male member can be slid smoothly when inserted into the female member. That is, as best shown in FIG. 6, the female member 2A is provided with a flange 24 extending in the insertion direction from the insertion opening 21A, and the male member 3A is complementary to the flange 24. A groove 37 is provided. The flange 24 and the groove 37 are fitted to each other so that the engagement is performed smoothly. Furthermore, the groove 37 of the male member 3A serves as a mark, so that the male member 3A cannot be mistakenly placed up and down, and the male member 3A cannot be inserted from the wrong direction due to the flange 24 of the female member 2A. There is also an effect.

In this embodiment, as shown in FIG. 5B, the female member twist angle (θ ₁ ) is about 10 degrees, the male member twist angle (θ ₂ ) is about −4 degrees, and in the assembled state, 14 degrees.

Furthermore, although it is difficult to read from the drawing due to limitations in drawing, the contours of the outer side portions 25 and 38 of the buckle are inclined in the direction of torsion so that the left and right sides are asymmetric. This emphasizes the visual twist and enhances the unique beauty.

Japanese Utility Model Sho 61-184408 JP 2001-346612 A

1, 1A Buckle 2, 2A Female member 21, 21A Insertion opening 22, 22A Locking opening 23, 23A Connection part 24 畝 3, 3A Male member 31, 31A Engagement protrusion 32 Guide protrusion 33, 33A Base part 34, 34A Swelling portion 35, 36; 35A, 36A connection portion 37 groove 4 rucksack 5 strap H height difference θ twist angle

Claims (9)

A buckle (1, 1A) comprising a female member (2, 2A) and a male member (3, 3A) removable from the female member (2, 2A),
The female member (2, 2A) has an insertion opening (21, 21A) that fits with the male member (3, 3A) at the tip, and a pair of locking openings (22, 22A) on the side. And a connecting portion (23, 23A) for connecting to the strap at the rear end,
The male member (3, 3A) has two engaging protrusions (31, 31A) that engage with the locking openings (22, 22A) at the front part, and supports these engaging protrusions at the rear part. A base (33, 33A) that has a connection (35, 36, 35A, 36A) for connecting to the strap,
The buckle, wherein the female member (2, 2A) and the male member (3, 3A) are twisted diagonally to generate a height difference (H). The buckle according to claim 1, wherein the height difference (H) caused by the twist is 1.2 to 4 times the thickness of the buckle (1). The buckle according to claim 2, wherein a twist angle generated by the height difference (H) is 10 to 18 degrees in an assembled state. The buckle according to claim 3, wherein the female member (2A) has a twist angle of 8 to 12 degrees, and the male member (3A) has a twist angle of -2 to -6 degrees. The buckle according to any one of claims 1 to 4, wherein a guide member (24, 37) is provided for sliding when engaged with the female member (2A) and the male member (3A). 6. The buckle according to claim 5, wherein the guide member is a groove (37) extending in a sliding direction provided in one member and a hook (24) having a complementary shape provided in the other member. The buckle according to any one of claims 1 to 6, further comprising erroneous operation preventing means for preventing the male member (3A) from being inserted into the female member (2A) by making a mistake in the upper and lower sides. The buckle according to claim 7, wherein the erroneous operation preventing means is a hook (24) provided on any inner surface of the male and female members. The buckle according to any one of claims 1 to 8, wherein the outer side (25, 38) contour of the buckle is inclined toward the twist direction so that the left and right sides are asymmetrical.

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