JPS6345939Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a buckle, and more particularly to a buckle that is provided on a bag, etc., has a simple structure, is easy to attach and detach, and is equipped with a locking mechanism.

[Conventional technology] BACKGROUND ART Bags and the like have traditionally 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 receives the lock piece provided on the main body side of the bag.

As a buckle consisting of this kind of lock piece and main body,
Various structures have been proposed in the past, and various materials such as metal and synthetic resin have been used.

[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, unreasonable force is applied to the engaging portion, causing it to wear out and become dull, making it impossible to maintain the engaged state.

Further, some devices are equipped with a locking mechanism to maintain the engaged state, but this locking mechanism has poor operability and requires the use of both hands, making it inconvenient to use.

[Means for solving the problems] In order to solve the above-mentioned problems, in the present invention, the main parts of the buckle are integrally molded from synthetic resin, and an easy-to-operate locking mechanism is provided on the main body side of the buckle. A new structure was adopted.

[Function] By employing the structure as described above, the buckle can be easily produced and lightened, and the lock mechanism can be operated extremely easily.

[Example] Hereinafter, details of the present invention will be explained based on an 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 curved upward is formed on the rear end side of the upper plate 5, and an elongated recess 8 is formed in the vicinity of this bent portion 7 and along this. Elongated holes 8a are formed at both ends of the recess 8 to penetrate to the lower surface.

Since the stopper 9 is fitted into this recess 8,
The thickness of the stopper 9 and the depth of the recess 8 are approximately the same.

The bent portions 9a at both ends of the stopper 9 have elongated holes 8
It is fitted into a.

Then, the bent part 9a is fitted into the elongated hole 10a formed in the stopper 10 located under the lid 3 of the bag, and is bent in the opposite direction as shown in FIG. 5 to lock the lock piece 1. Fix it to the lid 3 side of the bag.

A protrusion 11 is provided at the tip of the lock piece 1.

A recess 12 that is open toward the tip is formed on the lower surface of the protruding piece 11, and claws 12a are formed at opposite ends of the recess 12 on the open end side.

Note that the lower surface of the protruding piece 11 is flush with the lower surface of the lower plate 6.

On the other hand, the main body 2 side is composed of an upper frame 13 and a lower frame 14.

The upper frame 13 is formed as a flat frame with an open bottom, and a side wall 15 is formed on the front side thereof at right angles downward from the upper plate.

A groove 15a is formed along the longitudinal direction of the side wall 15 at the inner lower end of the side wall 15 and on both left and right sides.

Furthermore, arms 16 extend rearward from both left and right edges of the side wall 15.

The arm 16 is flush with the left and right edges of the upper frame 13, and has an inwardly bent portion 16a formed at its free end, and a protruding portion 16b formed on the outer surface of the free end. has been done.

Therefore, if these protrusions 16b are pressed with fingers from both sides, the free end side of the arm 16, that is, the bent portions 16a, 16
a can be elastically deformed in the direction of approaching each other.

Further, a protrusion 17 is formed at the rear end of the upper frame 13 over a predetermined length and located at the center along the lower surface of the upper plate.

Furthermore, legs 18 are provided on both sides near the rear end of the upper frame 13, protruding downward at right angles near the bent portion 16a, and near the lower ends of these legs 18, 18 are openings 18a. is formed.

On the other hand, a long hole 13a is formed in the center of the upper frame 13 along the front-rear direction.

An upper slide plate 28 constituting a locking mechanism is installed in this elongated hole 13a.

The slide plate 28 is formed into a substantially quadrilateral shape, and a projecting piece 28a is integrally provided on the lower surface of the slide plate 28. This projecting piece 28a is slidably fitted into the elongated hole 13a.

As shown in FIG. 9, the length of this protrusion 28a is such that it touches a protrusion 22b on the lower frame side, which will be described later.

Further, the slide plate 28 is guided along the straight portions of outwardly open U-shaped protrusions 13b, which are formed symmetrically on the upper frame 13.

Further, the projecting piece 28a is fitted into a long hole 29a formed in a lower slide plate 29 on the lower side of the upper frame 13 and in contact with the lower surface of the upper frame 13, and is crimped or
Alternatively, it is fixed by welding.

Therefore, the upper and lower slide plates 28, 29 slide together.

Notches 29b are formed at both corners of the edge of the lower slide plate 29 opposite to the side wall 15.

On the other hand, the lower frame 14 has the same width as the upper frame 13, but is formed as a rectangular frame with a somewhat longer length.

A side wall 19 is provided at the front end of the lower frame 14 so as to protrude upward from the board.

The height of the side wall 19 is smaller than the height of the side wall 15 of the upper frame 13 by the thickness of the lower frame 14, and the width is smaller than the height of the side wall 15 of the upper frame 13.
It is smaller than the side wall 15 by the thickness of the arm 16.

Furthermore, protrusions 19a are formed over a predetermined length near both ends of the base on the outer surface of the side wall 19.

These protrusions 19a are fitted into grooves 15a formed on the left and right sides inside the lower end of the side wall 15 of the upper frame 13.

On the other hand, a protrusion 21 is formed at the center of the inner side of the side wall 19, integrally with the substrate 20 of the lower frame 14 and also with the side wall 19. A pair of left and right arms 22,
22 extends parallel to the substrate 20.

A hook 22a is provided on the outside of the free end of each arm 22.
is formed.

Furthermore, a protrusion 22b is formed on the substrate 20 between the arms 22, 22, the width of which becomes narrower toward the tip.

The height of this protrusion 22b is slightly smaller than the height of the arm 22.

By the way, as shown in FIG. 4, the substrate 20 of the lower frame 14 has an elongated opening 2 having substantially the same shape as the arm 22 and surrounding the arm 22.
0a is formed.

Further, support columns 2 are provided on both sides near the tip of the substrate 20.
3 are provided in a protruding manner, and projecting pieces 23a are provided to protrude inwardly from the upper end of the support column 23, facing each other. The distance between the projecting pieces 23a, 23a is the same as that of the upper frame 13.
The length is almost the same as the length of the side protrusion 17.

The distance between the protruding piece 23a and the base plate 20 is approximately the same as the thickness of the protruding piece 11 of the locking piece 1.

Further, the lower surface of the protrusion 23a is flush with the lower surface of the protrusion 17 formed at the rear end of the upper frame 13, as shown in FIG.

In addition, each support 23 and the substrate 2 integrated therewith
A through hole 23b is formed through the hole 2.

Further, as shown in FIGS. 1 and 2, these columns 23, 23 are located adjacent to and along the rear of the left and right legs 18, 18 on the upper frame 13 side.

Furthermore, the board 2 is placed in contact with the front side of each support 23.
A notch 24 is formed on both left and right edges of the leg 0, and a protrusion 25 that fits into the opening 18a of the leg 18 projects from the bottom of the notch 24.

The upper frame 13 and the lower frame 14 having the above-described structure are integrated to form the main body 2 in the following manner.

First, the side wall 15 of the upper frame 13 is connected to the side wall 1 of the lower frame 14.
9, and fit the legs 18, 18 of the upper frame 13 into the left and right notches 24 of the board 20, and press it strongly, the protrusion 19a will be inserted into the groove 15a as shown in FIG. The protrusion 25 is press-fitted into the opening 18a as shown in FIG. 7, and the two are integrated.

In this integrated state, the bent portion 16a of the arm 16 has its tip located outside the arm 22, as shown in FIGS. 13 and 14, and no force is applied to the arm 22. has not been added.

After being integrated in this way, the main body 2 is assembled by stacking the backing plate 26 on the inside of the main body 4 of the bag, and inserting the screw 27 into the lower frame 14 through the through hole 26a formed in the backing plate 26.
It is fixed to the main body side of the bag by screwing it into the through hole 23b formed by penetrating the pillar 23 of the bag with the tap raised.

Note that the other screw 27 is screwed into the through hole 20b formed in the substrate 20 through the through hole 26a while making a tap.

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

When the lock piece 1 and the main body 2 are separated, the first
As shown in FIG. 1, no force is applied to the arm 16, and the tip of the bent portion 16a is not in contact with the arm 22.

That is, the arm 22 is also in a free state.

In this state, as shown by the arrow in FIG. Then, as shown in FIG. 12, the tips of the claws 12a formed on both sides of the lower surface of the protruding piece 11 are pressed against the outer slope of the hook 22a at the tip of the arm 22.

Then, when the lock piece 1 is further pressed, the claw 12a
pushes the hook 22a, and the arms 22 are elastically deformed in a direction in which they approach each other.

Then, when the claw 12a passes over the hook 22a, the hook 22a enters the recess 12 and engages the inside of the claw 12a, so that the arm 22 returns to its original state.

In this state, the lock piece 1 and the main body 2 are integrated,
Both remain engaged.

In this state, even if the lock piece 1 and the main body 2 are pulled in the direction of separation, they will not separate.

This state is shown in FIG.

On the other hand, when it is desired to open the bag, the state is changed from the state shown in FIG. 13 to the state shown in FIG. 15.

That is, each finger is placed on the outside of the protrusion 16b of the arm 16, and a force is applied in the direction in which the two approach each other.

Then, as shown in FIG. 15, the arms 16 are elastically deformed inward, and the tips of the bent portions 16a hit the outsides of the arms 22, 22, and the arms 16 are elastically deformed in the direction in which they approach each other, and the hooks 22a is separated from the claw 12a.

If the locking piece 1 is pulled in the direction away from the main body 2 in this state, the protruding piece 11 will be separated from the main body 2 side and the bag can be opened.

When the force applied to arm 16 is released, each arm 16 and 22 returns to its original state as shown in FIG.

You can open your bag as described above, but
If you want to lock, do the following:

That is, in the state where locking is not performed, Fig. 11~
As shown in FIG. 13, the upper and lower slide plates 28, 2
9 is slid toward the side walls 15 and 19, so that it does not interfere with the movement of the bent portion 16a of the arm 16.

However, when it is desired to lock the lock, place your finger on the upper slide plate 28 and push it forward, that is, toward the lock piece 1 side.

Then, the lower slide plate 29 also slides in the same direction, and the notch 29b of the slide plate 29 and the bent portion 16a of the arm 16 are brought into engagement as shown in FIG.

In this state, even if the arm 16 is pushed through the protruding portion 16b, the bent portion 16a contacts the cutout portion 29b of the slide plate 29 and is prevented from applying a pressing force to the arm 22.

Therefore, the lock piece 1 cannot be pulled out from the main body side.

In other words, the buckle is completely locked.

This locking operation can be performed with one finger on either arm.

On the other hand, if you want to release the lock, use your fingertips to slide the upper slide plate 28 toward the side wall 15, and the lower slide plate 29 integrated therewith will also slide in the same direction, causing the bent portion 16a of the arm 16 to slide. It will no longer block movement.

Therefore, in this state, if the arm 16 is pushed as shown in FIG. 15, the bent portion 16a can elastically deform the arms 22, 22 in the direction of approaching each other, and the hook 22a comes off the claw 12a and locks. Piece 1 can be easily removed.

In this way, the lock is released and the bag can be opened further.

[Effects] As is clear from the above explanation, the present invention consists of a lock piece integrally molded from synthetic resin, and a main body formed by integrating an upper frame and a lower frame, which are also integrally molded from synthetic resin. The structure is such that the slide plate that constitutes the lock mechanism is slidably provided on the main body side, so the overall structure is extremely simplified, the number of parts is reduced, and manufacturing and assembly are easy. Moreover, the lock mechanism can be easily operated with one hand, making it easy to use.

[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 a perspective view of the state attached to the bag, Figure 3 is an exploded perspective view of the whole, Figure 4 is an exploded perspective view as seen from the back side, Figure 5 is the same as Figure 1. A-
A sectional view taken along line A; FIG. 6 is a sectional view taken along line B-B in FIG. 1;
Figure 7 is a sectional view taken along line C-C in Figure 1, and Figure 8 is a cross-sectional view of Figure 1.
Figure 9 is a sectional view taken along the line E-E in Figure 1, Figure 10 is a sectional view taken along the line F-F in Figure 1, and Figure 11 shows the lock piece and main body separated. 12 is a sectional view corresponding to line G-G in FIG. 1 showing the state immediately before locking, FIG. 13 is a locked state, In addition, Fig. 14 is a sectional view taken along the line G--G in Fig. 1 showing the locked state, and Fig.
The figure is a sectional view corresponding to line GG in FIG. 1 showing the state immediately before unlocking. 1... Lock piece, 2... Body, 3... Bag lid, 4
... Bag body, 11 ... Projection, 12 ... Recess, 12
a...nail, 13...upper frame, 14...lower frame, 16...
...Arm, 16a...Bending portion, 20...Substrate, 22...
...Arm, 22a...Hook, 28, 29...Slide plate, 28a...Protrusion, 29b...Notch.

Claims (1)

[Scope of utility model registration request] It is molded from synthetic resin and consists of a lock piece 1 fixed to the lid side of the bag and a main body 2 fixed to the main body side of the bag. A recess 12 is formed on the back surface, and the recess 12
Opposing claws 12a are formed on both sides of the tip of the
The main body 2 is formed by integrating an upper frame 13 and a lower frame 14, and the upper frame 13 has elastically deformable arms 16 on both left and right sides thereof, each of which has an inwardly bent portion 16a at its tip. and a pair of upper and lower slide plates 28 and 29 that are connected to each other and can be slid up and down a certain distance. A pair of left and right arms 22, 22 are formed with a hook 22a that engages with the pawl 12a of the lock piece 1 on the outside of the free end, and a pair of left and right posts 23 that guide the projection piece 11 of the lock piece 1. ,2
3, the tips of the bent portions 16a of the arms 16, 16 face near the outside of the respective arms 22, 22, and the lower slide plate 29 engages with the bent portions 16a, 16a. A buckle characterized by being slidably provided in a position where they meet and a position where they separate.