JP7119560B2 - Buckle for size adjustment band - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a buckle for securing a band or belt having an uneven portion, and more particularly to a buckle for use with helmet headbands, watch bands, bag or shoe bands or belts.

BACKGROUND ART Until now, there have been proposed buckles for fastening bands or belts having various uneven portions, buckled helmet bands having buckles, and the like. For example, the buckle body consists of a bottom plate, a ceiling frame, and a side plate that face each other, and has an engagement groove on the inside of the buckle body, and an engagement claw that can be engaged with the engagement groove of the band on the lower surface of one end. At the same time, an operation plate with the upper surface of the other end as a pressing portion is installed inside the ceiling frame so as to be horizontal with the band, and the pressing portion is pushed by a seesaw-like mechanism with the approximate center of the operation plate as a fulcrum. A buckle has been proposed that lifts a dowel to release the engaged state (Patent Document 1).

Further, a buckle has been proposed in which, when an operating portion of the releasing member is pushed, the releasing portion of the releasing member pushes up the free end of the elastic member to release the engagement between the engaging portion at the free end and the uneven portion of the band. (Patent Document 2).

Japanese Patent Application Laid-Open No. 2000-135103 Japanese Patent No. 4103043

All conventional buckles for locking bands or belts having uneven portions release engagement by moving an engaging portion that engages with the uneven portions of the band. In order to swing the engaging portion, a certain length is required from the engaging portion to the fulcrum for swinging the engaging portion. The present invention is quite the opposite and provides a buckle that disengages by moving the ridges of the band. Since there is no need to swing the engaging portion, the buckle can be formed compactly.

That is, the present invention
(1) A buckle 4 for fixing a band 3 having uneven portions 1 and 2, the fixing plate 6 having an engaging portion 5 capable of engaging with the uneven portions 1 and 2 of the band 3, and the band 3 A first opening 7 through which the band 3 is inserted before passing through the engaging portion 5, a second opening 8 through which the band 3 is inserted after the band 3 passes through the engaging portion 5, and the vicinity of the engaging portion 5. The buckle has an operation plate 10 having an actuating portion 9 that swings up and down, and a space that allows the band portion facing the actuating portion 9 to bend upward or downward when the band is inserted.
(2) A first ceiling plate 14, a pair of first side wall portions 13 hanging down from both edges of the first ceiling plate 14 in the band width direction, and a first support plate 11 connected to the pair of first side wall portions 13. , the first opening 7 is formed, the second ceiling plate 16, the pair of first side wall portions 13 hanging down from both edges of the second ceiling plate 16 in the band width direction, and the pair of first side wall portions 13 A second opening 8 is formed by a second support plate 12 connected to the second opening 8, an operation plate 10 is formed between the fixed plate 6 and the second ceiling plate 16, and between the first support plate 11 and the second support plate 12 The buckle according to (1), in which a space is formed in which the band 3 can bend, and the engaging portion 5 is formed on the lower surface of the fixing plate 6 .

(3) First support plate 11 or operation plate 10, a pair of first side walls 13 standing from both edges of first support plate 11 or operation plate 10 in the band width direction, and a pair of first side walls A first opening 7 is formed by the first ceiling plate 14 connected to 13, and the second support plate 12 or the operation plate 10 and both edges of the second support plate 12 or the operation plate 10 in the band direction are erected. A pair of first side wall portions 13 and a second ceiling plate 16 connected to the pair of first side wall portions 13 form a second opening 8 between the first support plate 11 and the second support plate 12. An operation plate 10 is formed, a space is formed between a first ceiling plate 14 and a second ceiling plate 16 so that the band can bend, and an engaging portion 5 is formed on the upper surface of the fixing plate 6 (1). Buckle as described.

According to the present invention, the engagement of the band can be released by moving the unevenness of the band, so the buckle can be constructed compactly.

1 is a perspective view of a first example buckle of the present invention with a band inserted therethrough; FIG. FIG. 2 is a cross-sectional view taken along the line indicated by arrow B in FIG. FIG. 3 is a cross-sectional view along the line indicated by arrow A in FIG. FIG. 4 is a cross-sectional view along the line indicated by arrow C in FIG. FIG. 5 is a perspective view of a buckle of a second example of the invention.

6 is a cross-sectional view of a state in which a band is inserted into the buckle of FIG. 5. FIG. FIG. 7 is a perspective view of a buckle of a third example of the invention. 8 is a cross-sectional view of a state in which a band is inserted into the buckle of FIG. 7; FIG. FIG. 9 is a cross-sectional view along the line indicated by arrow C in FIG. 1 when the protrusion is formed near the center in the width direction of the band in the first example of the present invention. FIG. 10 is a cross-sectional view taken along the line indicated by arrow A in FIG. 1 when no protrusion is required in the first example of the present invention. FIG. 11 is a cross-sectional view along the line indicated by arrow C in FIG. 1 when no protrusion is required in the first example of the present invention. FIG. 12 is a cross-sectional view taken along the line indicated by arrow C in FIG. 1 when only the side wall portion of the operation plate in the band width direction is connected to the first side wall portion 13 in the first example of the present invention. FIG. 13 shows that, in the first example of the present invention, the operation plate 10 is connected to the pair of first side walls at the midpoint between one end and the other end in the longitudinal direction, so that it swings up and down with the midpoint as the fulcrum. FIG. 2 is a cross-sectional view along the line indicated by arrow C in FIG. 1 in the case of a flexible structure; FIG. 14 shows a third embodiment of the present invention in which the fixing plate 6 is not opposed to the operation plate 10, the vertical height of the band 3 is made the same, and the first support plate 11 and the second support plate are connected. 1 is a perspective view of a model that has been extended. FIG.

A feature of the present invention resides in that the engagement between the uneven portions 1 and 2 of the band 3 and the engagement portion 5 of the buckle 4 is released by swinging the band 3 up and down. Accordingly, the fixing plate 6 on which the engaging portion 5 is formed is fixed without rocking, and the operation plate 10 for moving the band 3 has the operating portion 9 which rocks up and down.
In order to release the engagement by moving the band 3 , it is necessary to move the portion of the band near the engaging portion that has passed through the engaging portion 5 using the operating portion 9 . Also, in order for the band 3 to move, it is necessary to provide a space for the band 3 to move in the moving direction.

The first opening 7 and the second opening 8 are for preventing the band 3 from wobbling in order to ensure the engagement between the uneven portions 1 and 2 of the band 3 and the engaging portion 5 of the buckle 4 .
The buckle of the present invention includes a first supporting plate 11 that supports the band 3 before the band 3 passes through the engaging portion 5 and a second supporting plate 12 that supports the band 3 after the band 3 passes through the engaging portion 5. have A first ceiling plate 14 facing the upper surface of the band 3 before the band 3 passes through the engaging portion 5 and a second ceiling plate 16 facing the upper surface of the band 3 after the band 3 passes through the engaging portion 5 have

As a method for swinging the band 3 up and down, a method of pushing the band 3 downward and a method of pulling the band 3 upward are conceivable. Down means towards the inside of the ring when the band forms a ring, and up means towards the outside.
(When pushing the band down)
The operation plate 10 and the fixing plate 6 must be provided on the band 3. The engaging portion 5 has an engaging portion at the bottom and is connected to the fixed plate 6 at the top. The band 3 is inserted through the buckle 4 with the uneven portions 1 and 2 facing upward.
The first opening 7 is formed by a first support plate 11 supporting the band 3 , a ceiling plate 14 , and a pair of first side wall portions 13 connecting the first support plate 11 and the ceiling plate 14 .
The second opening 8 is formed by a second support plate 12 supporting the band 3 , a second ceiling plate 16 , and a pair of first side wall portions 13 connecting the second support plate 12 and the second ceiling plate 16 .
A space for bending the band downward is provided between the first support plate 11 and the second support plate 12 .
The fixed plate 6 is located between the ceiling plate 14 and the ceiling plate 16 .

(When pulling the band up)
The operation plate 10 and the fixed plate 6 must be provided under the band 3. Operation plate 10 supports band 3 . The engaging portion 5 has an engaging portion at the top and is connected to the fixed plate 6 at the bottom. The band 3 is inserted through the buckle 4 with the uneven portions 1 and 2 facing downward.
The first opening 7 includes a first support plate 11 or operation plate 10 that supports the band, a first ceiling plate 14, and a pair of first side wall portions that connect the first support plate 11 or operation plate 10 and the first ceiling plate 14. 13.
The second opening 8 includes a second support plate 12 or operation plate 10 that supports the band 3, a second ceiling plate 16, and a pair of first side walls that connect the second support plate 12 or operation plate 10 and the second ceiling plate 16. formed in part 13;
A space for bending the band upward is provided between the first ceiling plate 14 and the second ceiling plate 16.例文帳に追加
The fixed plate is between the first support plate 11 and the second support plate 12 .
The present invention will be described in detail below with reference to the drawings.

This is an example of pushing the band downward.
FIG. 1 is a perspective view of a buckle 4 of a first example of the invention with a band 3 inserted therethrough. FIG. 2 is a cross-sectional view taken along the line indicated by arrow B in FIG.
FIG. 3 is a cross-sectional view along the line indicated by arrow A in FIG.
FIG. 4 is a cross-sectional view along the line indicated by arrow C in FIG.
One end of the band 3 is inserted through a buckle integrally formed with the other end of the band 3 .

In this embodiment, as shown in FIG. 1, the first ceiling plate 14 and the pair of first side wall portions 13 hanging down from both edges of the first ceiling plate 14 in the band width direction are opposed to the first ceiling plate 14. First, the first opening 7 is formed by the pair of first side wall portions 13 and the first support plate 11 that supports the band. Although the other end of the band is used as the ceiling plate 14 in this embodiment, the other end may be used as the first support plate 11 .

The second opening 8 does not face the pair of first side wall portions 13 and the second ceiling plate 16 hanging down from both edges of the second ceiling plate 16 and the second ceiling plate 16 in the band width direction. It is formed of a second support plate 12 that is connected to the side wall portion 13 and supports the band. The fixed plate 6 is located between the first ceiling plate 14 and the second ceiling plate 16, and is connected to the first ceiling plate 14 in this embodiment. An engaging portion 5 is formed on the lower surface of the fixing plate 6 , and an operating plate 10 that engages with the uneven portions 1 and 2 of the band is formed between the first ceiling plate 14 and the second ceiling plate 16 . Various methods are conceivable as the forming method. In this embodiment, one end of the operation plate 10 is connected to the pair of side wall portions 13 in the longitudinal direction of the band to form a fixed end 21, and the other end extends to the vicinity of the fixed plate 6 and is an operating portion that can swing up and down. 9 . The positions of the fixed end 21 and the fixed plate 6 in this embodiment can be reversed. That is, the fixed plate 6 is not connected to the first ceiling plate 14, but is provided at the position of the fixed end 21 in this embodiment, the fixed end 21 is connected to the first ceiling plate 14, and the other end extends to the vicinity of the fixed plate 6. It can also be extended to form an operating portion 9 that can swing up and down.

As shown in FIG. 2, the ceiling plate 14, the fixing plate 6, the operation plate 10, the lower surface of the ceiling plate 16, and the upper surfaces of the first support plate 11 and the second support plate 12 have no opposing members. , only the space is spread out. By doing so, the press-cut structure of the metal mold when integrally molding the band 3 and the buckle 4 can be easily achieved, and the cost can be reduced. In this embodiment, the upper surface of the actuating portion 9 of the operation plate 10 is higher than the upper surface of the fixed plate 6 from the upper surface of the band when the band is inserted so that it is easier to push. The height may be the same as shown, or it may be lowered by increasing the length of the engaging portion 5 . As a method of forming the operation plate 10, as shown in FIG. 12, a structure in which only both ends in the band width direction of the operation plate 10 are connected to the first side wall portions 13 may be used. In this case, it is preferable to form an inverted U shape so that the connecting portion can be easily bent.

Further, as shown in FIG. 13, by connecting the operation plate 10 to the pair of first side walls at the intermediate point between one end and the other end in the longitudinal direction, the operation plate 10 can swing up and down with the intermediate point as a fulcrum. can be
In the present invention, the operation plate 10 and the side wall portion 13 do not necessarily have to be formed integrally. For example, the operation plate 10 may be a separate member and fixed to the side wall portion 13 mechanically or by adhesion, fusion, or the like. In that case, only the operation plate 10 can be made of a material that is more elastic than the side wall portion 13 .

FIG. 2 is a cross-sectional view taken along the line indicated by arrow B in FIG. A pair of protrusions 15 are formed on the lower surface of the operating portion 9 at the edge portion on the side of the pair of side wall portions 13 . The width of the protrusion 15 in the band width direction is set so as not to come into contact with the irregularities 1 and 2 of the band 3 when the band 3 is inserted. In this embodiment, the protrusions 15 are present at the edges of the lower surface of the operating portion 9 on the side of the pair of side wall portions 13 . It is formed. In this embodiment, a large number of unevennesses 1 and 2 are alternately formed symmetrically in the width direction from the center in the band width direction with a constant width. When formed at the edge, the protrusion 15 is formed near the center in the width direction of the band so as not to hit the unevenness of the band 3 .

In addition, in this embodiment, the recesses 1 of the unevenness of the band 3 are formed so as to match the outer surface of the band 3. However, as shown in FIGS. If it conforms to the surface, it is not necessary to provide the ledge 15 . In FIG. 2, when the operating portion 9 is pushed down in the direction of the arrow, the protrusion 15 pushes down the band 3, and the engagement between the engaging portion 5 surrounded by the dashed circle in FIG. .

This is an example of pulling the band.
FIG. 5 is a perspective view of the buckle 4 of the second example of the invention.
6 is a cross-sectional view of a state in which a band is inserted into the buckle of FIG. 5. FIG.
A buckle 4 is molded at one end of the band 3 . The other end of band 3 is inserted through buckle 4 .

A first support plate 11, a second support plate 12, and an operation plate 10 between the first support plate 11 and the second support 12 support the other end of the band 3 having the uneven portions 1 and 2 when the band is inserted. .
A pair of side walls 13 are erected at the edges of the operation plate 10 in the band width direction, and are connected to a first ceiling plate 14 and a second ceiling plate 16 facing the upper surface of the operation plate 10 . A first opening 7 is formed by the operation plate 10 , the pair of side wall portions 13 , and the first ceiling plate 14 . A second opening 8 is formed by the operation plate 10 , the pair of side wall portions 13 , and the second ceiling plate 16 .
In this embodiment, the first opening 7 and the second opening 8 are formed in the operation plate 10 as described above, but the first opening may be formed in the first support plate 11, and the second opening may be the second opening. 2 may be formed on the support plate 12 .
In the vicinity of the engaging portion 5, there is an operating portion 9 that swings up and down. The portion facing the operating portion 9 has no ceiling plate and a wide space so that the band portion can bend upward when the band is inserted.

As can be seen from FIG. 6, there is a fixed plate 6 facing the lower surface of the operation plate 10, and the upper surface of the fixed plate 6 is formed with an engaging portion 5 that can be engaged with the uneven portions 1 and 2 of the band 3. ing. A part of the engaging portion 5 is seen through the opening 17 of the operation plate 10 between the first opening 7 and the second opening 8 and engages with the uneven portions 1 and 2 of the band 3 .

A second side wall portion 18 is erected from the edge portion of the fixed plate 6 . A second side wall portion 18 erected at an end portion in the longitudinal direction of the band is connected to the first support plate 11 and the second support plate 12 .

A handle 19 is formed hanging down from an edge in the band width direction of the operation plate 10 between the first opening 7 and the second opening 8 . The handle 19 allows the operation plate 10 to be pulled upward.
As can be seen from FIG. 6, the longitudinal end of the band of the operation plate 10 is inserted into the gap 20 formed by the first support plate 11 or the second support plate 12, the fixed plate 6 and the second side wall portion 18. ing. As the handle 19 of the operation plate 10 swings up and down, the end portion of the operation plate 10 moves back and forth in the gap 20 .

FIG. 6 shows a state in which the uneven portions 1 and 2 of the band 3 are engaged with the engaging portion 5. By moving the handle 19 of the operation plate 10 upward, the band 3 other than the band 3 supported by the operation plate 10 can be moved upward. The end moves up and disengages.

This is an example of pulling the band.
FIG. 7 is a perspective view of a third embodiment of the invention. 8 is a cross-sectional view of FIG. 7. FIG. The difference between the present embodiment and the second embodiment is that in the second embodiment, both ends of the operation plate 10 are not fixed and move back and forth in response to the vertical swing of the operation plate 10. , one end of the operation plate 10 is fixed and only the other end swings up and down.
In this embodiment, one end of the operation plate 10 is connected to the second support plate 12 and the other end is capable of swinging up and down. It may be able to swing up and down.
In this embodiment, the fixed plate 6 is located below the operation plate 10 and is formed to face them. is. In this case, the fixed plate 6 is connected to the central portion of the first support plate 11 and the second support plate 12 in the band width direction, and the operation plate 10 has one end connected to both the band width direction and both edges of the second support plate 12 . , and the other end extends to the vicinity of the first support plate 11 and is a free end.

In the above examples,
As shown in FIGS. 3 and 6, the concave portion 1 and the convex portion 2 formed on the band 3 have a serrated cross section along the longitudinal direction of the band. That is, the surface of the protrusion 2 facing the direction of pulling out the band is substantially vertical, and the surface facing the direction of inserting the band is an inclined surface. Correspondingly, the cross-sectional shape of the engaging portion 5 is such that the surface facing the direction of pulling out the band is an inclined surface, and the surface facing the direction of inserting the band is a substantially vertical surface. As a result, when the band 3 is inserted into the buckle 4, the inclined surface of the engaging portion 5 slides along the inclined surface of the convex portion 2, and when the fixing plate 6 is above the band 3, the band 3 is pushed down and fixed. When the plate 6 is below the band 3, the band 3 is pushed up and the engaging portion 5 climbs over the convex portion 2. - 特許庁Conversely, when the band 3 is pulled out from the buckle 4, the vertical surface of the engaging portion 5 contacts the vertical surface of the projection 2, and the band 3 is prevented from coming off without pushing the band 3 down or up.

The shapes of the concave portion 1 and the convex portion 2 of the band 3 and the engaging portion 5 are not limited to the above structures, and various modifications are possible. For example, the recesses 1 of the band 3 may be holes formed in the band 3 at regular intervals. good. Moreover, the cross-sectional shape of the concave portion 1 and the convex portion 2 may be a sine wave shape, a triangular wave shape, or the like, and in that case, the engaging portion 5 may be claw-shaped or complementary to each other.

The material of the member of the buckle 4 is not limited, but sufficient strength and elasticity can be ensured by molding using a general resin such as polyethylene or polypropylene. Depending on the member, it may be different or may be the same material.

1 band concave portion 2 band convex portion 3 band 4 buckle 5 engaging portion 6 fixing plate 7 first opening 8 second opening 9 operating portion 10 operating plate
11 First support plate 12 Second support plate 13 First side wall portion 14 First ceiling plate 15 Projection 16 Second ceiling plate 17 Opening
18 Second side wall 19 Handle 20 Gap 21 Fixed end

Claims (3)

A buckle (4) for fixing a band (3) having uneven portions (1, 2),
a fixing plate (6) having an engaging portion (5) that can be engaged with the uneven portions (1, 2) of the band (3);
a first opening (7) through which the band (3) is inserted before the band (3) passes through the engaging portion (5);
a second opening (8) through which the band (3) is inserted after the band (3) passes through the engaging portion (5);
an operating plate (10) having an actuating portion (9) which is located near the engaging portion (5) and swings up and down;
When the band is inserted, the band portion facing the operating portion (9) has a space that allows it to bend upward or downward,
A buckle that disengages an engaging portion (5) from an uneven portion (1, 2) by bending a band portion facing an operating portion (9) by operating an operation plate (10) . A first ceiling plate (14), a pair of first side wall portions (13) hanging down from both edges of the first ceiling plate (14) in the band width direction, and a pair of first side wall portions (13) are connected to each other. A first opening (7) is formed with the first support plate (11),
A second ceiling plate (16), a pair of first side wall portions (13) hanging down from both edges of the second ceiling plate (16) in the band width direction, and a pair of first side wall portions (13) are connected to each other. A second opening (8) is formed in the second support plate (12),
An operation plate (10) is formed between the first ceiling plate (6) and the second ceiling plate (16),
A space is formed between the first support plate (11) and the second support plate (12) so that the band portion facing the operating part (9) can be bent downward by operating the operation plate (10) ,
2. The buckle according to claim 1, wherein the engaging portion (5) is formed on the lower surface of the fixing plate (6) . a first support plate (11) or an operation plate (10); and a pair of first side walls (13) erected from both edges of the first support plate (11) or the operation plate (10) in the band width direction. , a pair of first side walls (13) and a first ceiling plate (14) connected to form a first opening (7),
a second support plate (12) or an operation plate (10); a pair of first side walls (13) erected from both edges of the second support plate (12) or the operation plate (10) in the band direction; A second opening (8) is formed by a pair of first side walls (13) and a second ceiling plate (16) connected,
An operation plate (10) is formed between the first support plate (11) and the second support plate (12),
A space is formed between the first ceiling plate (14) and the second ceiling plate (16) so that the band portion facing the operating part (9) can be bent upward by operating the operation plate (10) ,
2. The buckle according to claim 1, wherein the engaging portion (5) is formed on the upper surface of the fixing plate (6) .

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