JPH0146070B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sealing device for storage bags and the like.

The present inventor previously proposed a sealing device of this type that was composed of a case having a hollow part, a string holding piece housed in the hollow part, and a single string. (See Japanese Patent Application No. 1985-11985). The previously proposed sealing device is designed by inserting the opening of the coin storage bag into the ring-shaped part of the string formed twice through the case, and by pulling both ends of the string, the opening of the bag can be inserted into the ring-shaped part of the string. The coin storage bag is tightened by the string, and the middle part of the string is held down by the string pressing piece inside the case, making it very convenient to seal the coin storage bag very easily. However, the previously proposed sealing device has a problem in that if only one of the two loops is pulled strongly from the object to be sealed in the sealed state, there is a slight possibility that the string may loosen. Ta.

This invention solves the above-mentioned problems and provides a sealing device that can achieve a perfect seal without causing the string to loosen at all even when only one of the string portions is pulled strongly from the side of the object to be sealed in the sealed state. It is intended to.

This invention will be explained below based on embodiments shown in the drawings.

In this specification, front and back, left and right, and top and bottom are based on FIG. 1, and front means the upper side of FIG.
"Rear" refers to the bottom side of the drawing, "left" refers to the left side of the drawing, "right" refers to the right side of the drawing, and "top" refers to the front side of the drawing sheet.
Bottom means the same back side.

In the drawing, a sealing tool 1 for sealing a coin storage bag 2, etc. is a small box-shaped case 3 made of synthetic resin having a hollow part 6, and a synthetic resin such as Diuracon housed in the hollow part 6. Made of string presser piece 4
, a pair of wedges 50, 50 made of synthetic resin such as ABS, placed on both sides of the wedges and connected to each other by a connecting band 52, and one string 5 made of, for example, a round nylon string. has been done. The left and right side walls 7, 8 of the hollow portion 6 of the case 3 are inclined inward toward the front, and wedge-fitting recesses 51, 51 are provided in the front portions of these side walls 7, 8, respectively. and these recesses 5
1,51, there is a wedge 5 that tapers toward the front end.
0 and 50 are fitted respectively. Note that since the length of the recesses 51, 51 is longer than the length of the wedges 50, 50, the wedges 50, 50 can move relatively freely back and forth within the recesses 51, 51.

The front ends of the wedges 50, 50 are interconnected by a thin connecting band 52. A semicircular stopper 53, which is small when viewed from the plane, is provided in the center of the connecting band 52 so as to project rearward. When a strong tensile force is applied to the string 5 in the sealed state, the stopper 53 causes the string pressing piece 4 to press the wedge 50,
This is to prevent them from moving forward together with 50. Four string pressing protrusions 54 are provided on each inner surface of the wedges 50, 50, that is, the surface corresponding to the string, and string release notches 55, 55 are provided on the inside of each upper edge of the wedges 50, 50. ing. The left and right side walls 7 and 8 of the hollow part 6 have recesses 5 for wedge fitting, respectively.
Stepped portions 56, 56 are provided on the rear side of 1, 51, and these steps are designed to facilitate the work of assembling the string 5, and are provided with projecting portions 4 on both the left and right sides of the string holding piece 4, which will be described later.
This is provided to release the tips of 8 and 48.

The string presser piece 4 has a substantially truncated triangular shape when viewed from above, and two string presser protrusions 13 are provided on the left and right side walls 11 and 12 thereof. Further, a thin wall portion 17 is formed on the lower side of the rear end of the string holding piece 4, and a detent protrusion 18 is provided at the tip of this thin wall portion 17. Correspondingly, two latching recesses 21 into which the detent projections 18 are fitted are provided at predetermined locations on the lower wall 20 of the hollow portion 6 of the case 3, and one latching recess 21 on the rear side thereof.
A recess 22 for waiting the detent protrusion is provided. Here, the bottom wall of the standby recess 22 and the bottom wall of the latching recess 21 are both inclined upward toward the front. Two latching recesses 21 are arranged consecutively, and the detent protrusion 18 is sealed by fitting into the first latching recess 21, but the string 5 is further held with a stronger force. The string presser piece 4 can move forward even when it is tightened. When the string presser piece 4 moves forward the most, its front end hits the tip of the stopper 53 of the wedge connecting band 52, so that the string presser piece 4 is prevented from moving forward.

Further, string positioning protrusions 23, 23 are provided on both sides of the standby recess 22 in the lower wall 20 of the hollow portion 6. The string 5 is lifted on both sides of the string presser piece 4 by these protrusions 23, 23,
This prevents the string 5 from entering the underside of the string presser piece 4.

A sealed state display projection 43 is provided on the upper wall of the string holding piece 4 and is biased outward by a support member 42 that is substantially inverted U-shaped when viewed from the elastic side. A sealed state display window 44 into which the protrusion 43 is fitted is opened at a predetermined location on the upper wall 19 of the case 3 on the same side as the protrusion 43, and the protrusion 43 and the upper side 42a of the support member 42 are formed on the inner surface of the upper side wall 19. A concave groove 45 for guiding the window 44
It is provided to extend this on both the front and rear sides. In the state shown in FIGS. 1 and 5 with two-dot chain lines before sealing, the projection 43 and the front end of the upper side 42a of the support member 42 are fitted into the guide groove 45. Further, at the rear end of the base of the support member 42, there is provided an inclined surface 46 that slopes downward toward the rear, and due to the presence of this inclined surface 46, the upper side 42a of the support member 42 is connected to the case before sealing. This allows the air to escape effectively to the inside of 3.

On both sides of the bent portion of the support member 42 at the front end of the string presser piece 4, small square-shaped protrusions 47, 47 for preventing lifting of the string presser piece are provided.
The upper ends of these protrusions 47, 47 are opposed to the upper wall 19 portions on both sides of the guide groove 45 with a slight gap, and as will be described later, the string holding piece 4 moves forward and is integrally supported. Upper side 42a of member 42
When the front end of the upper side 42a passes directly under the sealing state display window 44, the front end of the upper side 42a passes directly under the sealing state display window 44.
This is to prevent it from getting stuck inside.

Further, thin wing-shaped string separation overhangs 48, 48 are provided on both the left and right sides of the string holding piece 4. These protruding parts 48, 48 serve to separate the upper and lower parts of the string 5 on the left and right sides of the string holding piece 4, respectively, and when the string 5 is tightened, they are biased towards the string holding piece 4. This serves to prevent the string holding piece 4 from rotating within the case 3 when a straining force is applied. In addition, a protrusion 4 for preventing lifting is provided at the tip of each of the protruding parts 48, 48.
9,49 are provided.

As shown in FIG. 1, one string 5 is folded back at the center of a required length, and this folded portion 5a is hung over the support member 42 at the front end of the string holding piece 4. And the string part 1 on one side of this string presser piece 4
5 is taken out to the outside from the string insertion hole 27 on the front left side of the case 3, and is inserted into the first ring-shaped part 16 for drawing the object to be sealed.
is formed, and the middle part 15b of the cord part 15 is inserted into the hollow part 6 again from the cord insertion hole 27 on the front right side of the case 3.
The string portion 15 is inserted into the case 3 and passes between the string holding piece 4 and the wedge 50 on the right side, and the tip portion 15c of the string portion 15 is taken out to the outside from the string insertion hole 28 on the rear right side of the case 3. The string portion 25 on the other side of the presser piece 4 is inserted into the string insertion hole 27 on the front right side of the case 3.
The second ring-shaped part 26 for drawing the object to be sealed is formed by being taken out to the outside, and the middle part 25 of the string part 25
b is inserted into the hollow part 6 again through the string insertion hole 27 on the front left side of the case 3, and the string holding piece 4 and the left wedge 5 are inserted.
0, and the tip 25c of the string portion 25 is taken out from the string insertion hole 28 on the rear left side of the case 3.

In addition, on both the left and right sides of the string holding piece 4, the starting ends 15a,
25a and the intermediate portions 15b, 25b are arranged to overlap vertically. Here, string part 1
The starting ends 15a, 25a of the wedges 50, 25 do not need to be held down during sealing, respectively.
It is arranged on the upper side so as to fit into the string release notches 55, 55 of 50. On the other hand, since the intermediate parts 15b and 25b of both the string parts 15 and 25 are held down during sealing, the string holding protrusions 13 and 13 on both the left and right sides of the holding piece 4 and the wedge 50,
It is arranged on the lower side so as to be located between the string presser protrusions 54, 54 of 50.

At the front end of the case 3, a string locking protrusion 37 having an arcuate cross section is provided. This is to reduce the contact area between the coin storage bag 2 and the case 3 in the sealed state, thereby preventing the string 5 from loosening due to the case 3 swinging up and down. Therefore, such a protrusion 37 does not have to have an arcuate cross-sectional shape, but may have a substantially triangular cross-section, for example, and the front end of the case 3 itself may have an arcuate or triangular cross-sectional shape. It may be something that you have.

The case 3 is made of synthetic resin such as ABS, and as shown in FIGS. 9 to 12, an upper half 3a and a lower half 3b formed by a mold are integrated by fusion. It is created by doing. The upper half 3a has a rectangular shape when viewed from above, and has drooping parts 29 and 30 on the left and right edges of the upper half 3a, and a rear wall 31 on the rear end thereof.
is provided. Rear wall 31 and left and right hanging parts 2
A gap 32 of a required width between the rear ends of 9 and 30,
32 are opened in each. The lower half part 3b has a rectangular shape of the same size as the upper half part 3a, and has a pair of rising parts 33, 34 near the left and right edges of the lower half part 3b.
In addition, a triangular front wall 35 is provided at the center of the front end, and 52 strings can be inserted between the front wall 35 and the front ends of the left and right rising portions 33 and 34, respectively. width gap 36,
36 is opened in an inverted C shape when viewed from the plane. In addition, the upper wall of the lower half body 3b is the case 3 after combination.
It constitutes the lower wall 20 of the hollow part 6,
At the rear of the upper wall of the lower half 3b, there is a detent protrusion standby recess 22 into which the detent protrusion 18 of the string holding piece 4 is fitted, and a detent protrusion latching recess on the front side thereof. 21 is provided. The inner walls of the left and right rising portions 33 and 34 of the lower half body 3b constitute the left and right side walls 11 and 12 of the hollow portion 6 of the case 3, and a wedge-fitting recess 51, 51 are provided respectively. The string loosening prevention protrusion 37 is provided on the lower half body 3b.

When the upper half 3a is combined with the lower half 3b so that the left and right hanging parts 29, 30 are located outside of the left and right rising parts 33, 34, the upper half 3a and the lower half 3b are combined. A hollow part 6 is formed therebetween, and string insertion holes 27, 27 are formed on both sides of the front wall 35 to communicate with the front end of the hollow part 6. In addition, the rear wall 31 of the upper half 3a has both left and right rising portions 3.
3 and 34, and the rear wall 31
Strap insertion holes 28, 28 communicating with the rear end of the intermediate portion 6 are formed between the two rising portions 33, 34.
And the hanging part and the rising part 29, 33 and 30, 3
4 constitute the left and right side walls of the case 3.

A string pressing piece 4, a pair of wedges 50, 50 mutually connected by a connecting band 52, and one string 5 are placed between the upper half body 3a and the lower half body 3b.
After assembling as shown in the figure, the lower walls of the left and right hanging parts 29, 30 of the upper half 3a and the left and right edges of the upper wall of the lower half 3b are fused together using a joining device (not shown). As a result, the upper half body 3a and the lower half body 3b are integrally joined to form a case 3, and inside the case 3, a string holding piece 4, a pair of wedges 50,
50 and the string 5 are assembled in a predetermined arrangement to form a sealing tool 1.

For example, the sealing tool 1 has a length of 2 cm, a width of 1.6 cm,
It is small, about 0.6 cm thick, and how to use it will be explained below.

In the state before sealing of the sealing tool 1, as shown in FIGS. 1 to 3, the string holding piece 4 is arranged at the rear inside the case 3, and the detent protrusion 18 of the string holding piece 4 is hollow. The sealed state display projection 43 is fitted into the standby recess 22 of the lower wall 20 of the portion 6 , and is pressed into the case 3 against the elastic force of the support member 42 . The wedges 50, 50 are fitted into the recesses 51, 51 of the left and right side walls 7, 8 of the case 3 in a relatively free state, and the connecting band 52 is arranged on the front side of the string holding piece 4. The first ring part 16 and the second ring part 26 of the string 5 form a double ring with the case 3 in between.

And these first and second annular portions 16, 2
Insert the opening of the coin storage bag 2 into the inside of the coin storage bag 6, and in this state, insert both ends 15 of the string 5 on the outside of the rear of the case 3.
c, pull 25c. Then, the first and second
The sizes of the ring-shaped parts 16, 26 are both reduced, and the opening of the coin storage bag 2 is tightened by these ring-shaped parts 16, 26, and when both the ring-shaped parts 16, 26 are tightened the most, As shown in FIGS. 4 to 6, the string holding piece 4 is moved forward together with the string folded portion 5a. The wedges 50, 50 on both sides of the string holding piece 4 are fitted into the recesses 51, 51 of the case 3 in a relatively free state, and the wedges 50, 50 are in contact with the rear wall of the recesses 51, 51 from the beginning. In this case, it does not move as it is, but the wedges 50, 50 are in the recesses 51, 51.
When the string holding piece 4 moves forward as described above, the wedges 50, 50 on both sides of the string holding piece 4 are pushed against the inclined side walls 7, 8 of the case 3 due to the reaction force. The wedges 50, 50 eventually come into contact with the rear walls of the recesses 51, 51 in any case.

As the string presser piece 4 moves forward, the desired intermediate portions 15b, 25b of the string 5 are moved against the left and right side walls 11,
12 and the wedges 50, 50 and is held down by the string pressing protrusions 13, 13, 54, 54, and the detent protrusion 18 of the string pressing piece 4 is held thin by the elasticity of the thin part 17. After being pressed inward together with the part 17, the detent protrusion 18 is fitted into the latching recess 21 and latched to the rear wall of the recess 21, thereby preventing the string holding piece 4 from retreating. This is prevented, and the sealing of the coin storage bag 2 is completed. At the same time, the sealing state display protrusion 43 is connected to the support member 42.
The elastic force causes the seal to fit into the window 44 of the case 3, thereby allowing the sealed state to be determined from the outside. In this state, the front end of the string presser piece 4 touches the stopper 53 of the connecting band 52.
Therefore, the string holding piece 4 can no longer move forward.

Furthermore, in the sealed state by tightening the string 5, the string portions 15 of both ring-shaped portions 16, 26,
25, for example, when only the string portion 15 is pulled more strongly than the object to be sealed 2, as shown in FIG. 50 moves slightly forward along the side wall 8 of the case 3 due to the frictional resistance with the string 5, and the intermediate portion 15b of the string 5 is further firmly held down by the secondary force, so that the string part 15
is not pulled out to the sealed object 2 side at all.

Particularly in this case, since the tip of the stopper 53 provided on the connecting band 52 of the wedges 50, 50 is brought into contact with the front end of the string presser piece 4, the string presser piece 4 tends to move forward together with the wedge 50. As a result, the string 5 never loosens, and a perfect seal can be achieved.

Although the stopper 53 is provided on the connecting band 52, the stopper 53 may be provided at the front end of the string holding piece 4 so that its tip abuts against the side of the connecting band 52.

In addition, the first and second annular portions 16 and 26 of the string 5
is wrapped around the opening of the coin storage bag 2 only once in the figure, but these looped parts 16, 2
6 can also be wrapped twice or more to seal.

In the above embodiment, the sealing state displaying protrusion 43 is attached to the string holding piece 4 via the support member 42 having a U-shape with a lateral surface. It may be attached to the holding piece 4, and the shape of the projection 43 is arbitrary. Although the protrusion 43 is provided on the upper wall of the string presser piece 4, it may also be provided on the lower side wall of the string presser piece 4, in which case the detent protrusion 18
may be provided on the upper wall or may be omitted in some cases. Of course, the display window 44 is provided on the upper wall 19 or the lower wall 20 of the case 3 in correspondence with the projection 43.

Further, in the above embodiment, the case 3 is composed of an upper half body 3a and a lower half body 3b, which are integrally joined to each other by fusion.
Of course, the upper half body 3a and the lower half body 3b may be joined by so-called adhesion or welding. In addition, the case 3 can also be made by integral molding. Furthermore, although the illustrated case 3 has a box shape, it may of course have a cylindrical shape, a truncated cone shape, or the like. Although the case 3 and the string holding piece 4 are made of synthetic resin, they may be made of other materials. The string 5 is made of nylon, for example, but may of course be made of other synthetic fibers or materials such as hemp. Alternatively, a knot may be provided at the center of the required length of the string 5, and the knot may be hung on the rear wall of the string holding piece 4.

The reason why one string 5 is used in a folded state as described above is because it is convenient when hooking the string 5 to the string presser piece 4. Therefore, for example 2
By using strings that are approximately the same length as the book, one end of each is fixed to the string holding piece 4, and the two ring-shaped parts 16 and 26 are formed by these two strings.
Of course, this invention may be implemented. In this case, the strings 5 are connected together via the string presser piece 4, but it is somewhat troublesome to separately fix one end of each of the two strings 5 to the string presser piece 4. be.

Further, in the above embodiment, two cord presser protrusions 13, 13 are provided on each of the left and right side walls 11, 12 of the cord presser piece 4;
It is sufficient that at least one is provided.
Four string presser protrusions 54, 54 are provided on the inner surfaces of the wedges 50, 50, that is, on the string contact surfaces.
It is sufficient that these are provided at least one after the other. The shape of the string presser protrusions 13, 13 is not limited to that shown in the drawings, and may be any suitable shape. Also wedge 5
The string contact surface of 0.50 may be a flat surface.

In addition, in the embodiment, a thin wall portion 17 and a detent protrusion 18 are provided on the lower rear side of the string presser piece 4, but these are located on both upper and lower sides of the front part of the string presser piece 4 and on both upper and lower sides of the rear part of the string presser piece 4. , it suffices if it is provided in at least one location. Of course, corresponding to the detent protrusions 18 provided on these string holding pieces 4, detent protrusion latching recesses 21 are provided at predetermined locations on both upper and lower side walls 19, 20 of the hollow portion 6 of the case 3. . In addition, although there are two latching recesses 21 in the illustration,
One or three or more may be provided consecutively in the front-rear direction.

In addition, the string 5 shown in the figure has predetermined portions including string insertion holes 27, 27 formed on both left and right sides of the front wall 35 of the case 3, and string insertion holes 28, 28 formed on both left and right sides of the rear wall 31. In addition, string insertion holes are made in the front and rear parts of the case 3 that pass through both the upper and lower walls or the left and right sides of the case 3, and the string 5 is taken out from these holes. A predetermined portion may be taken out to the outside.

Furthermore, in each of the above embodiments, the coin storage bag 2 is sealed with the sealing tool 1 of the present invention, but
The sealing tool 1 of the present invention is not limited to this, and can also be used to seal various other things.

As described above, the sealing tool 1 according to the present invention includes a case 3, a string holding piece 4 housed in the middle part 6 of the case so as to be movable back and forth, and a connecting band 5 at the front end.
a pair of left and right wedges 50 interconnected by 2;
50 and one string 5, and by tightening the string 5, the intermediate portions 15b and 25 of this
b is held down by the string holding piece 5 and in the sealed state, the stopper 53 and the connecting band 52 are interposed between the string holding piece 4 and the front wall 35 of the case 3. Even if only one of the string portions 15, 25 constituting both ring-shaped portions 16, 26 is pulled more strongly from the side of the object to be sealed 2, the string holding piece 4 no longer holds the wedges 50, 50. It is completely impossible for the string 5 to move forward together with the string 5, and therefore, due to the so-called secondary holding action of the wedge 50 alone, the string 5 will not loosen at all and a perfect seal can be achieved. play.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway plan view of the sealing device according to the present invention, showing the state before sealing. Figure 2 is a sectional view along the line of Figure 1, Figure 3 is a cross-sectional view of Figure 1.
4 is a partially cutaway plan view of the sealing device after sealing, and FIG. 5 is a sectional view taken along the line.
6 is a sectional view taken along the line of FIG. 4, and the string is not shown. FIG. 7 is a partially cutaway plan view of the sealing device, showing the state of movement of the wedge when the string portion is further pulled from the side of the object to be sealed after sealing. Fig. 8 is an exploded perspective view of the sealing device, Fig. 9 is a plan view of the lower half of the case of the sealing device, Fig. 10 is a central vertical sectional view of the lower half, and Fig. 11 is the lower half of the same. Fig. 12 is a bottom view of the upper half of the case, Fig. 13 is a plan view of the string holding piece of the sealing device, Fig. 14 is a right side view of the same, Fig. 15 is a rear view of the same, Fig. 16 is a rear view of the case. The figure is a plan view of the wedge, FIG. 17 is a rear view thereof, and FIG. 18 is a sectional view taken along FIG. 16-. 1...Sealing tool, 2...Coin storage bag (sealed item),
3... Case, 3a... Upper half body, 3b... Lower half body, 4... String holding piece, 5... String, 5a... Folded part, 6... Hollow part, 7... Left side wall, 8 ...Right side wall, 11...Left side wall, 12...Right side wall, 13,5
4... String presser protrusion, 15, 25... String part, 15
a, 25a... Starting end, 15b, 25b... Middle part, 15c, 25c... Tip, 16, 26...
First and second annular portions, 17...thin wall portions, 18...
...Detent protrusion, 19...Upper side wall, 20...Lower side wall, 21...Detent protrusion latching recess, 22...
Standby recess, 37... String loosening prevention protrusion, 42...
...Supporting member, 43...Sealing state display projection, 44
...Sealing state display window, 48...String separation protrusion, 50...Wedge, 51...Wedge fitting recess, 52
... Connecting band, 53... Stoppa.

Claims (1)

[Claims] 1 A case 3 having a hollow part 6, a string holding piece 4 housed in the hollow part 6, and a connecting band 5 at the front end.
a pair of left and right wedges 50 interconnected by 2;
50 and one string 5, the left and right side walls 7, 8 of the hollow part 6 of the case 3 are inclined inward toward the front, and the string holding piece 4
At least one string presser protrusion 1 on each side of the left and right sides of the
3, 13 are provided, and a pair of wedges 50, 50 each have a shape that becomes tapered toward the front end, and these wedges 50, 50 are arranged on both left and right sides of the string presser piece 4. A connecting band 52 is arranged on the front side of the string pressing piece 4, and a stopper 53 is provided at either the center of the connecting band 52 or the front end of the string pressing piece 4, so that the string 5 has a required length. The folded part 5a is folded back at approximately the center, and the folded part 5a is hooked onto the string holding piece 4, and the string part 15 on one side of the string holding piece 4 is taken out from the front part of the case 3 and used to pull the sealed object. The first ring-shaped part 16 for drawing is formed, and the intermediate part 15b of the string part 15 is inserted into the hollow part 6 from the front part of the case 3 again and passes between the string holding piece 4 and one of the wedges 50. , and the same string part 1
5 is taken out from the rear of the case 3, and the string portion 25 on the other side of the string holding piece 4 is taken out from the front of the case 3, forming a second ring-shaped part for drawing the object to be sealed. part 26 is formed, the middle part 25b of the string part 25 is inserted into the hollow part 6 from the front part of the case 3 again, passes between the string holding piece 4 and the other wedge 50, and then the middle part 25b of the string part 25 2
5 is taken out to the outside from the rear part of the case 3, and the first and second annular parts 1
Both ends 15 of the string 5 on the outside of the rear part of the case 3 when the object to be sealed 2 is fitted into the case 6 and 26.
c, 25c, the sizes of both the first and second annular portions 16, 26 are reduced,
The object to be sealed 2 is tightened by these ring-shaped parts 16 and 26, and when both ring-shaped parts 16 and 26 are tightened, the string pressing piece 4 is moved forward together with the string folded part 5a, and the string 5 The required intermediate portion 15b, 2 of
5b is the left and right side walls 11 and 12 of the string holding piece 4 and the wedge 5
0,50 and the string presser protrusions 13,13
The forward movement of the string holding piece 4 is prevented by the connecting band 52 and the stopper 53, and furthermore, in this sealed state, the string portions 1 of both ring-shaped parts 16, 26
5, 25 is pulled more strongly than the object to be sealed 2 side, the intermediate portion 15b of the string portions 15, 25,
A seal for a coin storage bag, etc., in which the wedges 50, 50 which are pressed against the casing 25b move forward along the side walls 7, 8 of the case 3, and the middle parts 15b, 25b of the string 5 are firmly held down. Ingredients.