JPH0448300Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a buckle equipped with a locking mechanism that is installed on a bag, etc., and more specifically relates to a buckle that can be reliably and easily locked and unlocked. It is something.

[Prior Art] Bags and the like have conventionally been provided with buckles. This buckle consists of a lock piece provided on the lid side of the bag, and a main body of the buckle that is provided on the main body side of the bag and is fitted with the lock piece.

A variety of structures have been proposed for this type of buckle, and various materials such as metals and synthetic resins are used for them.

[Problems that the invention aims to solve] However, conventional buckles of this type often have complicated structures and are difficult to operate.
In many cases, an unreasonable force is applied to the engaging portion or the engaging portion becomes worn out, so that it becomes so-called dull and cannot maintain the engaged state.

In addition, there was a drawback that the number of parts was large and the manufacturing process was large, resulting in high costs.

[Means for solving the problems] In order to solve the above-mentioned problems, the present invention simplifies the structure by integrally molding the main parts of the buckle with synthetic resin, thereby creating a structure with excellent operability. Adopted.

[Function] By adopting the above-described structure, the buckle is easy to produce, easy to use, and costs can be reduced.

[Example] The details of the present invention will be explained below based on the example shown in the drawings.

The buckle according to the present invention is composed of a locking piece 1 and a main body 2.

The lock piece 1 is fixed to the lid 3 side of the bag, and the main body 2 is fixed to the main body 4 side of the bag.

The locking piece 1 is molded from synthetic resin and has a large-area upper plate 5 and a small-area and short-length lower plate 6, between which the tip of a bag lid 3 is inserted.

A bent portion 7 that curves upward is formed on the rear end side of the upper plate 5, and two cylindrical bodies 8 are formed on the lower surface of the upper plate 5 and are spaced apart from each other by a predetermined distance. ing.

A through hole 9 whose lower end is open is formed in the inner peripheral surface of the cylinder 8.

This locking piece 1 is adjacent to the lower plate 6 and is attached to the lid 3.
Screw 1 from the bottom of the stopper 10 placed on the bottom of the
1 and screwed into the through hole 9 of the cylindrical body 8 to be fixed to the lid 3.

A truncated conical bulge 10a is formed in the pad 10 facing the cylinder 8, and the screw 11 is fitted into a through hole 10b formed through the center of the bulge 10a.

On the other hand, a projecting piece 12 is provided at the tip of the locking piece 1 in a protruding manner.

A recess 13 is formed on the lower surface of the projecting piece 12 and is open toward the tip, and claws 13a facing inward are formed at both ends of the recess 13 on the open end side. Furthermore, a protrusion 13b is provided at the center of the recess 12 so as to protrude toward the main body 2.

Note that the lower surface of the protruding piece 12 is flush with the lower surface of the lower plate 6.

On the other hand, the main body 2 is composed of an upper frame 14 and a lower frame 15.

The upper frame 14 is formed as a flat frame with an open bottom, and a side wall 16 is formed on the front side thereof at right angles downward from the upper plate. A groove 16a is formed along the longitudinal direction of the side wall 16 at a lower end portion inside the side wall 16 and at a symmetrical position.

Furthermore, arms 17 extend rearward from the left and right edges of the side wall 16 at substantially right angles. The arm 17 is flush with the left and right edges of the upper frame 14, and has an inwardly bent portion 17a formed at a substantially right angle on the free end side, and a protruding portion on the outer surface of the free end side. A portion 17b is formed.

Therefore, if these protrusions 17b are pressed with fingers from both sides, the free end side of the arm 17, that is, the bent portions 17a, 17
a can be elastically deformed in the direction in which they approach each other.

Further, on the lower surface of the rear end of the upper frame 14, a protrusion 18 is formed over a predetermined length and located in the center.

Further, on both sides near the rear end of the upper frame 14, legs 19 are provided to protrude downward at right angles in the vicinity of the bent portion 17a.
An opening 19a is formed near the lower end of the opening 9.

On the other hand, a quadrilateral opening 20 is formed approximately in the center of the upper frame 14, and an elastic bridge 20a is formed to cross this opening 20 along the front-rear direction. This bridge 20a is curved so as to be convex toward the right side in FIG. A protrusion 20b having a semicircular cross section is formed.

Therefore, this bridge 20a can be elastically deformed inward when external force is applied from the convex side.

Further, on the lower surface of the upper frame 14, flat protrusions 14a are formed in a substantially L-shape in a symmetrical manner with the opening 20 in between.

Upper slide plates 21 and 22, which constitute a part of the lock mechanism, are attached using the opening 20.

The slide plate 21 located on the upper side
It is formed into a rectangular plate shape with a width approximately equal to the spacing between 4a and 14a, and a plurality of protrusions 21a are formed at a predetermined pitch across the width direction on its upper surface.

As shown in FIG. 5, three projecting pieces 23 to 25 are provided on the lower surface of the upper slide plate 21. As shown in FIG.

These three protrusions 23 to 25 are parallel to each other and protrude from the slide plate 21 along the longitudinal direction.

Sliding 23, 25 located on both left and right sides
the distance between the outer sides of the opening is approximately equal to the width of the opening;
Hooks 23a and 25 are provided at the tip portions toward the outside.
A is provided protrudingly.

The tip of the protruding piece 24 located at the center has a substantially triangular cross section, and all the protruding pieces 23 to 25 have the same height.

Each of the projecting pieces 23 to 25 is fitted into the opening 20 from above the upper frame 14.

On the other hand, the slide plate 22 located on the lower side is formed into a substantially square shape as a whole, with a notch 22a formed at each corner, and a rectangular opening 22b formed at the center thereof. has been done.

The length of the opening 22b is approximately equal to the distance between the outer sides of the protruding pieces 23 and 25, and the width thereof is equal to the width of each of the protruding pieces 23 to 25.

By the way, the protrusions 23 to 25 of the upper slide plate 21 are fitted into the opening 20, but at this time,
The protrusion 24 located at the center is located on the protrusion 20b side of the bridge 20a.

The protruding piece 24 and the left and right protruding pieces 23, 25 are fitted into the opening 22b of the lower slide plate 22, and the protruding pieces 23, 25 are pushed inward through the hooks 23a, 25a. When the hooks 23a, 25a are elastically deformed and pass through the opening 22b, they return to their original state, and as shown in FIG. The upper and lower slide plates 21 and 22 are integrated with the upper frame 14 in between, and can be moved integrally through the opening 20.

On the other hand, the lower frame 15 is configured as follows.

That is, the lower frame 15 is formed into a substantially flat plate shape, and a side plate 26 is provided to protrude upward from the front edge of the lower frame 15. The length of the side plate 26 is the lower frame 15
It is slightly shorter than its own width, and its left and right base ends are fitted into grooves 16a in the side wall 16 of the upper frame 14. A protrusion 26a having a triangular cross section is provided in a horizontal manner.

Blocks 26b are integrally protruded from the inner surfaces of both left and right ends of the side plate 26, and a through hole 26c is formed in each block 26b to vertically penetrate the entire lower frame 15.

In addition, blocks 27 are provided on both sides of the lower frame 15 at positions corresponding to the legs 19 of the upper frame 14, and are retracted inward by the thickness of the legs 19, protruding upward. On the outer surface of the leg 19 is a protrusion 2 having a triangular cross section and fitted into the opening 19a of the leg 19.
7a is provided protrudingly.

Further, in addition to this block 27, another block 27b is formed one step higher. The outer surface of this block 27b is in the same plane as the outer edge of the upper frame 15. A through hole 27c is formed vertically through this block 27b.

By the way, two elongated openings 28 are formed in the back side of the lower frame 15 in a left-right symmetrical state in the front-rear direction. At the ends of these openings 28 on the locking piece 1 side, outwardly bulging portions 28a are formed.

Further, another elongated opening 28b is formed between these openings 28.

A pair of left and right arms 29 are provided on the upper surface of the lower frame 15 in correspondence with the opening 28 . The base end of each arm 29 is integrated with the side plate 26, and a bulge 29a having the same shape as the bulge 28a of the opening 28 is formed on the free end thereof.

On the other hand, an elongated opening 30 is provided between the arms 29, 29.
A guide frame 31 is provided via 30. The guide frame 31 also has its base end integrated with the side plate 26, and its distal end is bifurcated, forming a pair of left and right guide arms 32, 32, with an elongated notch 33 formed between them. ing. Notch 33
is narrower than the opening 28b, and the opening 28b is narrower than the opening 28b.
It penetrates b.

Also, what is indicated by the symbol 34 is a pin, and the lower frame 1
It is formed into a rectangular shape that is almost the same as the overall shape of 5, and has truncated conical bulges near the four corners.
5 is formed.

These bulging portions 35 have through holes 35a formed therein. A cylindrical body 36 having a through hole 36a is integrally provided on the back surface of the lower frame 15 so as to face the through holes 35a.

The pad 34 is stacked on the underside of the main body 4 of the bag, and the through hole 3
A screw 37 is screwed into 5a to pass through main body 4, and fixed by screwing into through hole 36a of cylindrical body 36 of lower frame 15.

On the other hand, as shown in FIGS. 16 and 15, the lower frame 1
A stepped portion 38 is formed on the proximal end side of the opening 28b of No. 5 in a lowered state, and a protrusion 38a is protruded from this stepped portion 38. In addition, the stepped portion 38
A step portion 39 having the same height is formed on the other end side of the opening portion 28b, facing the opening portion 28b.

Using these steps 38 and 39, the opening 28b
is closed by a cover 40. The cover 40 has almost the same shape as the opening 28b, and has a through hole 4 at one end into which the protrusion 38a is fitted and fixed.
0a is formed.

On the other hand, there is a notch 33 on the inside of the arms 32, 32,
The spring 41 is accommodated in a state covered by the step portion formed in the space through which the wider opening 28b passes and the cover 40 so as not to come off. A contact 42 is fitted and fixed at one end of this spring 41, that is, between the tips of the guide arms 32, 32.

Next, the operation and usage method of this embodiment configured as above will be explained.

The lock piece 1 is fixed to the lid 3 side of the bag by a screw 11 via a pad 10, and the main body 2 is fixed to the main body 4 side of the bag by a screw 3 facing the lock piece 1 via a pad 34.
Fixed by 7.

And, before locking, Figure 6, 1
As shown in Figure 0, the upper slide plate 21 is pulled to the right in the figure. As a result, the lower slide plate 22 is also pulled to the right and comes into contact with the inside of the side plate 26 of the lower frame 15. In this state, even if the arm 17 is pushed inward through the protrusion 17b, the bent portion 17a does not come into contact with the lower slide plate 22.

At this time, the protrusion 2 of the upper slide plate 21
4 is in contact with the convex side of the bridge 20a and the right side of the protrusion 20b in the figure, as shown in FIG. 9, and is maintained in that position.

In this state, the lock piece 1 is brought closer to the main body 2 side, and the protrusion piece 12 is inserted from the open end side of the upper and lower frames 14 and 15. Then, the claws 13a, 13a advance along the outer surfaces of the bulges 29a of the arms 29, 29, and each arm 29,
29 is elastically deformed inwardly. and,
When the claws 13a, 13a get over the bulges 29a, 29a, the arms 29, 29 return to their original positions, and the claws 13a
is caught on the bulge 29a and once locked.

This state is shown in FIG. At this time, protrusion 1
3b fits between the guide arms 32 and presses the contact 42, thereby pressing the spring 41. In this state, the bag lid is locked.

Therefore, in order to prevent the buckle in the locked state from being accidentally unlocked, the upper slide plate 21 is pushed toward the lock piece 1 side. Then, the lower slide plate 22 also moves in the same direction via the protrusions 23 to 25.

At this time, the protrusion 24 located in the center
0a is elastically deformed to get over the protrusion 20b, and as shown in FIG. 12, the notch 22a of the lower slide plate 22 and the bent part 17a of the arm 17 come into contact with each other, and even if the arm 17 is pushed, the arm 29 is also pushed. It cannot be unlocked.

On the other hand, when it is desired to unlock the door, the arms 17, 17 are pushed inward through the projections 17b, as shown in FIG. As a result, the arms 17, 17 are elastically deformed inwardly, and the bulging portions 29a,
29a separates from the claws 13a, 13a, and the lock is released. Then, the elasticity of the spring 41 pushes out the protrusion 13b of the lock piece 1 from the guide arm 32 via the contact 42, allowing the lid 3 to be opened.

As described above, you can unlock and open the bag with just one touch.

[Effects] As is clear from the above description, according to the present invention, the lock piece and the main body are molded from synthetic resin, and the main body is simply fitted with the upper frame and the lower frame, and the arms 17 of the upper frame,
The bent portions 17a, 17a of 17 are connected to the arms 29, 2 of the lower frame.
The lower slide plate of the pair of upper and lower slide plates attached with the upper plate of the upper frame in between faces the outside of the frame 9 and is configured to be able to slide into a position where the lower slide plate engages or separates from the bent portions 17a, 17a. It is extremely easy to manufacture because it can be locked, and it is equipped with a spring that pushes out the lock piece, so when unlocking the bag, you can open the bag with one touch with one hand, ensuring smooth locking and unlocking. A buckle can be provided that can be used to

[Brief explanation of the drawing]

The figure is for explaining one embodiment of the present invention.
The figure is an overall perspective view, Figure 2 is an overall perspective view attached to the bag, Figure 3 is an exploded perspective view of the whole, Figure 4 is an exploded perspective view of the main parts seen from the bottom side, and Figure 5 is an exploded perspective view of the main parts as seen from the bottom side. A perspective view of the upper and lower slide plates seen from the bottom side, Figure 6 is a sectional view taken along line A-A in Figure 1, and Figure 7 is B in Figure 1.
-B sectional view, Figure 8 is a CC line sectional view in Figure 1, Figure 9 is a D-D sectional view in Figure 6, and Figure 10 is an E-E sectional view in Figure 6. , Fig. 11 is a sectional view taken along the line FF in Fig. 6, Fig. 12 is a cross-sectional plan view of the main parts in the locked state, Fig. 13 is a transverse plan view showing the unlocking action, and Fig. 14 is the unlocked state. 15 is an enlarged sectional view taken along the line G-G in FIG. 3, and FIG. 16 is a cross-sectional view of
It is a sectional view taken along line H-H in the figure. 1... Lock piece, 2... Body, 3... Bag lid, 4
...Bag body, 14...Top frame, 15...Bottom frame, 17
...Arm, 17a...Bending portion, 20...Opening, 2
0a...Bridge, 20b...Protrusion, 21...Upper slide plate, 22...Lower slide plate, 29...
...Arm, 29a...Bulge, 32...Guide arm, 4
1...Spring.

Claims (1)

[Scope of utility model registration request] It consists of a lock piece 1 molded from synthetic resin and fixed to the lid side of the bag, and a main body 2 fixed to the main body side of the bag, and a protruding piece 12 is formed at the tip of the lock piece 1, A recess 13 is formed on the back surface of the recess 1.
3, opposite claws 13a are formed on both sides of the tip, and a protrusion 13b is formed in the center of the recess 13, and the main body 2 is formed by integrating an upper frame 14 and a lower frame 15. The frame 14 has elastically deformable arms 17, 17 each having an inwardly bent portion 17a at its tip on both the left and right sides thereof, and arms 17, 17 that can slide vertically and longitudinally for a certain distance across the upper plate of the upper frame. A pair of upper and lower slide plates 21 and 22 are provided on the bottom frame 15, and a locking piece 1 is provided along the front and back direction on the bottom plate of the lower frame 15.
A pair of left and right elastic arms 29, 29, each having a free end and a bulging portion 19a that engages with the claw 13a of the locking piece 1 formed on the outside of the free end; A pair of left and right guide arms 32, 3 are formed parallel to the arm 29 on the lower frame 15 between them.
2 and accommodated between these guide arms 32, 32,
A spring 41 that engages with the protrusion 13b of the locking piece 1, and a pair of left and right blocks 27b, 27 that guide the protruding piece 12 of the locking piece on both upper surfaces of the lower frame 15.
b, the tips of the bent portions 17a of the arms 17, 17 face near the outside of the arms 29, 29, and the lower slide plate 22 is provided with the bent portions 17a of the arms 17, 17.
A buckle, characterized in that it is provided so as to be slidable between a position in which it engages with the pins a and 17a and a position in which it separates therefrom.