JPS63160602A - Plastic buckle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an improvement of a plastic buckle consisting of a separable male member and a female member, and is useful for interconnecting both ends of a belt, strap, etc. used.

(Prior Art) This type of buckle is disclosed in Japanese Patent Application Laid-open No. 54-31338, and is made up of a male member and a female member that are separable from each other, and the female member has a hollow cylindrical shape, and one end thereof has a male member and a female member that are separable from each other. Plastic buckles are known in the art which are provided with an opening into which the male member is inserted.

<Problems to be Solved by the Invention> However, the conventional female member merely receives the male member into its hollow interior, and the hollow interior is not effectively utilized.

In particular, today, as buckles are used for various purposes, various demands and demands have arisen depending on the purpose.For example, one of these demands is that the buckle itself be damaged There are demands for the convenience of having some kind of storage space.

<Means for Solving the Problems> Therefore, the present invention provides a buckle that satisfies the above requirements, and the details thereof will be explained below using FIG. 1 corresponding to an embodiment.

The present invention provides a storage recess 3 for storing small items, which has an opening 33 that can be opened and closed at least at one end in the hollow interior of the female member 2.
4.

<Function> Therefore, according to the present invention, not only can the male member 2 and the female member 3 be connected and separated from each other similarly to the conventional buckle described above, but also, unlike the conventional buckle, the opening 33 can be opened. ,
After storing an object (not shown) in the storage recess 34, the opening 33 can be closed.

<Example) The present invention will be explained below based on embodiments shown in the drawings.

In FIG. 1, 1 indicates a plastic buckle, and this buckle 1 is composed of a male member 2 and a female member 3 that are separable from each other.

As shown in FIGS. 1 to 4, the male member 2 includes a flange 4, a pair of left and right flexible arms 5.5 extending forward from both front ends of the flange 4, and a flange 4. It has a substantially U-shaped belt attachment part 6 extending rearward from the rear surface of the belt, and is integrally molded from plastic. Further, on the front surface of the flange 4, a protrusion 7 for positioning or preventing backlash is integrally provided at the center of the flange 4 and extends forward for a short distance. Further, the free ends of the two flexible arms 5 are provided with a half-arrowhead-shaped overhang portion 8 that overhangs outward to the left and right, and the rear end of this overhang portion 8 is provided with a locking step portion 9 that is inclined diagonally rearward. has been established.

As shown in FIG. 6, FIG. 3, and FIG. 4, the belt attachment portion 6 includes a pair of opposing parallel side pieces 10° 10 extending rearward from both left and right ends of the rear surface of the collar portion 4; A pair of adjacent bars 11 each having a polygonal cross section are provided between both side pieces 10.
12, one of the bars 11, 12, in this case the inner bar 11, has both ends rotatably supported on both sides 10.

To explain in more detail based on the embodiment, as shown in FIG. 3, a pair of left and right shafts 13,
A shaft hole 14 that protrudes from 3 and passes through both shafts 13 on both sides lO.
, 14 respectively. In addition, this shaft 13 and shaft hole 1
4 is preferably formed by punching out the shaft hole 14 while leaving the shaft 13 in the I& shape.

Further, as shown in FIG. 6, the rotating bar 11 has a hexagonal cross-sectional shape deformed into a substantially rhombic shape, but of course it may also be simply a square such as a rhombus. The bar 12 has a narrow first surface 16 that is parallel to the bottom surface 15 of the bar 12, and a second surface 17 that rises at an acute angle to the first surface 16, for example, perpendicularly, and between both surfaces IG and 17. forms a corner 18 facing the other fixing bar 12. others,
It has a third surface 19 that extends obliquely upward and is in contact with the second surface 17 at an obtuse angle, for example, at an angle of 1" 140 degrees. horizontal grooves 20 are provided to prevent movement of the bell) B in the width direction.The other fourth to sixth surfaces 21 to 2
3 constitutes a surface that is symmetrical with respect to the axis of the first to third surfaces described above, and therefore the description thereof will be omitted.

As shown in FIG. 6, the fixed bar 12 has both ends connected to the inner surfaces of the both side pieces 10, and has the horizontal bottom surface 1 as described above.
5, and a rising surface 24 rising at an acute angle, for example perpendicular to the bottom surface 15, and a fixed corner 25 facing the corner 18 of the rotary bar 11 is formed between both surfaces 15° 24. . The rising surface 24 faces parallel to the second surface 17 of the rotary bar 11 in a static state, and the two surfaces 17, 24
The opposing distance between the two is made sufficiently larger than the thickness of the bell) B.

In addition, as shown in FIG.
A contact portion 26 for regulating the rotation angle of the rotary bar 11 is provided. This contact portion 26 has a downwardly facing lower surface that contacts the second surface 17 when the rotating bar 11 rotates counterclockwise, and this lower surface allows the rotating bar 11 to rotate counterclockwise as shown in FIG. prevent rotation.

Furthermore, as shown in FIG. 1, the bottom surface 15 of the fixed bar 12 has a plurality of lateral grooves 27 along the length direction of the rotating bar 11.
The horizontal groove 27 prevents the belt B from moving in the width direction.

On the other hand, as shown in FIGS. 3 to 5, the female member 3 has an opening 28 at least at one end through which both line arms 5 of the male member 2 can pass through while bending inwardly using its elasticity.
with wide upper and lower walls 29°30 and narrow left and right side walls 3
The main body case 32 has a flat hollow cylindrical shape surrounded by 1.31 on all sides, and a U-shaped belt attachment part 6' extending rearward from the rear end of the main body case 32, and is integrally molded from plastic. Become. Further, a storage recess 34 having an opening 33 on either one of the upper and lower sides (1129.30) is provided in the hollow interior of the main body case 32, and the opening 33 of this storage recess 34 can be opened and closed with a lid 35. I'm trying to block it. In addition, in the embodiment shown in the drawings, this lid body 35
Although the cover body 35 is molded separately from the female member 3 from plastic, it is of course possible to connect the lid body 35 to the female member 3 with a thin hinge and mold the lid body 35 from plastic integrally with the female member 3. .

To explain more specifically in accordance with the embodiment, the main body case 32 has wide upper and lower walls 2 as shown in FIGS. 3 to 5.
In addition to having left and right side walls 31 having a narrow width of 9.30, the front surface thereof is closed with a front wall 36 except for the openings 28 opened at both ends, and the rear surface is completely closed with a rear wall 37. ing.

Further, inside the main body case 32, a pair of inner walls 38.degree. 38 are provided at an interval equal to the width of the left and right sides of the opening 28, on the inner side facing one side wall 31. As shown in FIG. 3, within the space between the inner wall 38 and the side wall 31, a pair of left and right hollow passages 39 are elongated in the front and rear, through which the flexible arms 5 of the male member 2, one end of which faces the opening 28, pass. Form .39. Also, within the interval between both inner walls 38, the front wall 36 is located around the inner wall 38.
, the inner surfaces of the rear wall 37 and the inner wall 38, as well as the upper surface thereof, are closed by the upper wall 29, and the opening 33 forms a large storage recess 34 in the lower wall 30.

Further, the flexible arms 5 of the male member 2 are attached to the both side walls 31.
A pair of left and right windows 4G and 40 are opened into the passage 39 into which the overhang 8 fits, and a portion of this window 40 is cut into the wide upper and lower walls 29, 30, and its rear edge is cut into the above-mentioned window. Further, the front wall 36 has a locking end 41 which is inclined in the same direction as the locking step 9 of the overhanging portion 8 of the flexible arm 5 and is hooked on the locking step 9 in a non-returning manner. The flange part 4 of the male member 2 is located in the center of the male member 2.
A small rectangular through hole 42 into which the more protruding protrusion 7 fits is opened.

On the other hand, between the storage recess 34 and the lid 35, as shown in FIG.
As shown in FIG.
A releasable locking means is provided for locking at 8. This locking means consists of elastic locking pieces 44, 45 having sawtooth-shaped claws 43 that are vertically disposed from the lid body 35, and a locking member in which the claws 43 formed on the inner wall surface of the storage recess 34 are fitted in a non-returning manner. Stop hole 46.4
7, but in addition, a locking step may be provided on the lid body 35, and a protrusion may be provided from the inner wall surface of the storage recess 34 to engage with this locking step in a non-returning manner. .

The elastic locking pieces 44 and 45 are provided in pairs on both sides of the front edge of the lid body 35 and one in the center of the rear edge, and the former extends linearly and has a forward-facing claw 43 midway along its length. The latter is bent backwards into a single-shape, and has a backward-facing claw 4 at its end.
It has 3.

The locking holes 4G and 47 are respectively opened on both sides of the front wall 36 and in the center of the rear wall 37, the latter penetrating through the rear wall 37, and a shallow groove 48 is provided at the edge of the hole. In addition, a locking piece 44 is fitted into the corner of the storage recess 34 in proximity to the locking hole 46.
It is preferable to provide a guide wall 49 in the shape of a letter.

Furthermore, the belt attachment portion 6' of the female member 3 has a much simpler structure than the belt attachment portion 6 of the male member 2,
The both side walls 31 are made to extend rearward as viewed, and thin plate-shaped cross members 50 are provided vertically between the extending ends 31'. Of course, the male part? It may have a structure similar to that of the belt mounting portion 6.

Next, the procedure for using the male member 2 and female member 3 will be explained.
Then, attach the bells) B to the belt attachment portions 6, 6' of both members 2.3, respectively.

First, in order to close the opening 33 of the storage recess 34, the lid 3
Insert the lid 3 into the opening 33 with the locking pieces 44 and 45 of 5 facing inward.
5, that is, the locking piece 44 is fitted onto the guide wall 4.
9 and press the lid body 35 toward the opening 33, each of the locking pieces 44 and 45 fit into the storage recess 34 while bending, and the winter melon 43 was fitted into the locking holes 4G and 47. At this position, the winter melon 43 snaps into the locking pieces 44.45 due to the elastic restoring force of each locking piece 44, 45, and the lid body 35 is locked in the opening 33 of the storage recess 34.

Next, to attach the belt B to the belt attachment part 6 of the male member 2, slide the free end B' of the belt B over the bottom surface 15 of the fixing bar 12 as shown by the dashed line in FIG. While
Wrap the first surface 16, sixth surface 20, and fifth surface 19 of the rotary bar 11 from the outside in this order, bring it out upwards, fold it downwards at the top, pass it through the space between both bars 11 and 12, lower it down, and pass it through first. Insert the tip between the bell) B and the bottom surface 15 of the fixed bar 12 and lead it out to the outside.

To tighten the belt B, the free end B' can be pulled in the direction a shown in FIG.

That is, when the free end B' of the belt B is pulled, the belt B moves sequentially in the direction in which it is pulled, crossing each side of both bars 11, 12. On the other hand, when tightening the bell (B), return the bell (B) to the forward feeding mode, loosen it once at the turning point above the one-rotation bar 11, and then move the base end of the bell (B) as shown in FIG. Just pull it back in the direction b shown, and the bell)B
can be easily loosened.

Once the length adjustment of belt B is completed in this way, it is advisable to once pull the base end of belt B in the direction b shown in FIG. 6, and then tighten belt B. In other words, When the base end of the belt B is pulled back in the direction b, the rotating bar 11 is pulled by this and rotates counterclockwise about its shaft 13 as a fulcrum. Along with this rotation, the corner 18 of the rotating bar 11 gradually approaches the fixed bar 12, the opposing distance between the two bars 11, 12 gradually narrows, and the second surface 17 of the rotating bar 11 or its corner 18 becomes closer to the fixed bar 12. ) A contact portion 26 of the fixed bar 12 across B
In this stop position, the belt B hits the lower surface of the rotating bar 11 and the fixed corner 25 of the fixed bar 12, which are vertically opposed to each other. It wraps around itself and is bent into a roughly two-character shape. Therefore, even when a force is applied to the bell (B) in the pulling direction (direction b in Figure 7) during use, the middle of the length of the bell (B) will tightly wrap around both corners 18 and 22 and stick tightly. , to prevent belt B from coming off.

In addition, when a force is applied to the belt B in the pulling direction, a counterclockwise rotational force is generated on the rotating bar 11. This rotational force causes the second surface 17 of the rotating bar 11 or the corner 1 of the rotating bar 11 to be
8 is strongly pressed toward the lower surface of the contact portion 2B, and the bell) B is held between both sides from both sides, and the rotating bar 1
The corner 18 of the belt 1 and the corner 26' of the abutting part 26 bite into the belt B alternately up and down to prevent the belt B from coming off. In this action, regardless of the direction of the force acting on the proximal end of bell)B, even when bell)B is pulled directly downward (in the b' direction shown in Figure 7), it will rotate in the same way. Since a counterclockwise rotational force is generated on the bar 11, the bell) B is similarly prevented from coming off. The rotational force acting on the bar 11 for one rotation is:
The friction with the belt B and the cross-sectional shape of the rotating bar 11 are effective.

Also, in order to attach the belt B to the belt attachment part 6' of the female member 3, as shown in FIG.
The belt B may be folded back, and the folded end portion may be overlapped with the base end portion of the belt B and sewn in an overlapping state.

Next, to explain how to attach and detach both members 2.3, both flexible arms 5 of the male member 2 are aligned with each opening 28 of the main body case 32 of the female member 3, as shown in FIG. Just insert it.

That is, when the flexible arm 5 of the male member 2 is inserted, the outer surface of the overhanging portion 8 at the tip thereof comes into contact with the inner edge of each opening 28,
Pushed by the inner edges of the opening 28, both flexible arms 5 flex inwardly toward each other from their proximal ends, passing through the opening 28 and advancing into the passageway 39. When the overhanging part 8 of the flexible arm 5 reaches the window part 40, it is restored by its elastic force and the overhanging part 8 snaps into the window part 40, and at this time, the overhanging part 8 The locking step 9 at the end is caught on the locking end 41 at the rear end of the window 40, and the flexible arms 5 are restrained in the passage 39 so that they cannot pass through, and the male member 2 and the female member 3 are connected to each other. Further, at this time, since the protrusion 7 of the male member 2 fits into the through hole 42 of the front wall 36 of the female member 3, play after connection can be reduced.

On the other hand, in order to release the above-mentioned connected state, it is sufficient to push both flexible arms 5 a little at the same time from each window part 40 with a finger.
That is, when both flexible arms 5 are pushed in, one of the flexible arms 5 is bent inwardly toward the other, and the locking stepped portion 9 of the overhanging portion 8 engages with the window portion 40.
As the one-car flexible arm 5 is unlatched from the locking end 41 of the one-car flexible arm 5, it is pushed back along the passage 39 toward the opening 28 while restoring itself due to its elastic force. The members 2 and 3 can be removed quickly and easily. Furthermore,
Since the flexible arm 5 is prevented from being bent more than necessary by the inner sides 38 and 38 when the members 2 and 3 are attached and detached, damage to the flexible arm 5 can be prevented.

Next, in order to use the storage recess 34 of the female member 3, first,
After removing the lid 35, the stored item (not shown) may be stored in the storage recess 34, and the lid 35 may be closed again.

To remove the lid 35, push the claw 43 of the locking piece 45 from the outside through the locking hole 47. In other words, use your fingernail or the tip of a screwdriver to push the claw 43 protruding from the groove 48. When pushed in, the 1-shaped locking piece 45 bends and its claw 43 disengages from the locking hole 47. Insert the tip of your finger or nail between the lid body 35 and the opening 33 to close the lid. Open the body 35 diagonally, remove the claw 43 of the other locking piece 44 from the locking hole 46, pull out the locking piece 44 from the guide hole, and remove the lid 3.
5 can be removed.

When the lid body 35 is removed in this manner, the opening 33 of the storage recess 34 is opened, so that the storage recess 3 can be opened from this opening 33.
Place, for example, small folded banknotes, memos, or a special small memo pad in the opening 33, then reattach the lid 35 to the opening 33 and close the lid 35 using the procedure described above. Bye.

Moreover, if the upper wall 29 of the female member 3 is faced to the front side when attaching the bell) B, the presence of the storage recess 34 will not be visible from the outside because it will be blocked by the earthen wall 29, so it can be used as a secret pocket.

In addition, the storage recess 34 can also be used as a space for incorporating a micro switch or a lighting device.

For example, if a microswitch (not shown) is to be incorporated, the operating protrusion (not shown) should be inserted into the through hole 40 of the front wall 36.
It is preferable to press the operating protrusion with the protrusion 7 of the male member 2. By doing so, it is possible to detect the attachment and detachment of both members 2 as a signal, which further expands the field of application. 0 For example, if used as a seat belt buckle in a car, if the seat belt is not fastened or is not fully fastened when the handbrake is released, a warning sound will be emitted to the driver and the seat belt will be closed. Proper wearing of the belt can be encouraged.

Further, the storage recess 34 is formed in the center of the main body case 32 of the female member 3, but in addition, the main body case is separated into upper and lower parts, and the storage recess is formed using the space below. Good too.

Further, although the opening 33 of the storage recess 34 is opened in the lower wall 30, it may of course be opened in the earthen wall 29, or in addition,
As shown in FIG. 8, the front side of the storage recess 34 may be opened without being closed by the front wall 36, and this opening front surface may be used as the opening 33 of the storage recess 34. In this way, the opening front surface of the storage recess 34 may be When the opening 33 is formed, the upper and lower surfaces of the opening 33 are of course closed with the upper wall 29 and the lower wall 30, and when the male member 3 is inserted, the opening 33 is closed with the front surface 4' of the collar 4. Therefore, the lid that closes the opening 33 can be omitted.

(Effects of the Invention) As explained above, according to the present invention, the male member 2 and the female member 3 can be connected and separated from each other like the conventional buckle described above, and also, unlike the conventional buckle, the male member 2 and the female member 3 can be separated. Part 33
Since the opening 33 can be closed after opening and storing the stored items (not shown) in the storage recess 34, the stored items will not be dropped or lost, and the range of applications is extremely wide. We can provide buckles with high added value.

To give a specific example, the storage recess 34 can store bills or notes folded into small pieces, so it can not only be used as a secret pocket, but also a micro switch or a lighting device can be incorporated into the storage recess 34. This allows you to utilize the functions of microswitches and lighting devices.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is an exploded perspective view of the buckle, FIG. 2 is a perspective view of the buckle in a connected state,
Figure 3 is a cross-sectional view of the same as above, Figure 4 is a cross-sectional view of the same as above, taken along line ff-ff, Figure 5 is a cross-sectional view of line v-v of Figure 3, and Figure 6 is of the belt attachment part. FIG. 7 is an explanatory view showing the state in which the belt is attached, and FIG. 8 is a cross-sectional view showing another embodiment. In the figure, B is a belt, l is a buckle, 2 is a male member, 3 is a female member, 2B is an opening, 33 is an opening, and 34 is a storage recess.

Claims (1)

[Claims] A plastic product comprising a male member and a female member that are separable from each other, the female member having a flat hollow cylinder shape, and having an opening at one end into which the male member is inserted. A buckle made of plastic, characterized in that the hollow interior of the female member is provided with a storage recess for storing small items having an opening that can be opened and closed at least at one end.