JPH06112681A - Closing structure of cylinder or bag and cylindrical body for electromagnetic shielding having such structure - Google Patents

Abstract

PURPOSE:To provide a closing structure of an opening of a cylinder or a bag by which easy opening and easy and airtight closing of the cylinder or the bag are available and to provide a cylindrical body for electromagnetic shielding having that structure. CONSTITUTION:A cylindrical body 10 for electromagnetic shielding which is fastened in a cable insertion opening 22 of a case 20 has at its end part a belt-like face fastener 30 and a face fastener piece 32. The belt-like face fastener 30 has a male fitting member on its front face 34 and a female fitting member on its rear face 36 and it is so structured that its front face and rear face may fit in with each other. The face fastener piece 32 has the same male fitting member as the one the belt-like face fastener 30 has on its front face 34 and it fits in with the rear face 36. The cylindrical body 10 is narrowed until it is airtightly adhered to a bundle of cables 40 and the belt-like face fastener 30 is wound round its outer surface and its opening is closed. At that time, the belt-like face fastener 30 is held by the face fastener piece 32 and so it is not slipped out of the cylindrical body 10. The opening of the cylindrical body 10 can be easily opened only by peeling off the belt-like face fastener 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for closing an opening of a flexible cylinder or bag and an electromagnetic shield cylinder having the structure.

[0002]

2. Description of the Related Art Conventionally, for example, actual Kaihei 2-54292.
As disclosed in the publication, an electromagnetic shield structure is known in which a tubular body having conductivity is attached to an insertion port of a connection cable provided in a housing to block an electromagnetic wave transmitted through the cable insertion port. It was As shown in FIG. 5, according to this electromagnetic shield structure, the cylindrical body 100 made of a flexible metal net has a fixed frame 102 at one opening thereof.
Was mounted and fixed to the cable insertion port provided in the housing 104 with the screw 106. In addition, the cylindrical body 100
The other opening was provided with a tubular string passing along the periphery thereof, and the narrowed portion 110 was formed through the string 108.

With such a structure, the same electromagnetic shield structure can be applied regardless of the thickness and the number of the cable bundle 112 to be inserted, and the aperture 110 can be easily closed by tightening the throttle 110.

[0004]

According to the prior art,
As shown in FIG. 5, since the narrowed portion 110 is folded in a pleated shape when it is tightened, it is easy to form many gaps 114. In particular, as the thickness of the inserted cable bundle 112 is smaller than the thickness of the tubular body 100, the gap 114 is more likely to be formed, and the electromagnetic shield is desired to be tightly attached to the outer periphery of the cable bundle 112. There was a problem with the structure.

Further, when the narrowed portion 110 fastened to the cable bundle 112 is opened by removing the string 108,
Since the knot of the string 108 has been unraveled, the squeezing portion 110 has to be sequentially turned and gradually opened, which is a troublesome work. Furthermore, the string 108 having a sufficient length for tightening had its end part hanging when tightened. In particular, when the cylindrical body is squeezed and tightened, there is a large amount of excess at the end and there is a possibility that it will be caught by something, which is only an obstacle.

In view of the above, the present invention has a structure in which the opening of a flexible tube or bag is closed by squeezing it with a belt-shaped tightening member to close the tube or bag, and has a higher degree of adhesion and can be easily opened and closed. It is an object of the present invention to provide a closed structure capable of achieving the above, and an electromagnetic shield cylinder provided with the structure.

[0007]

In order to achieve the above object, the present invention has the following constitution as means for solving the problem. That is, in the tube or bag closing structure in which the opening of the flexible tube or bag is squeezed by the band-shaped tightening member to close the opening, the band-shaped tightening member is provided with a male engaging member on one surface and the other side. A female engaging member that engages with the male engaging member is disposed on the surface of the belt, and a belt-shaped fastener that engages on the front and back sides, one end of which is attached near the opening of the cylinder or bag, and is attached. That is, the structure of the cylinder or bag closing structure is characterized in that the opening is closed by winding the fastening member around the outer circumference of the opening of the tube or bag over one round starting from one end.

According to the closing structure having the above structure, since only one end of the strip fastener is attached near the opening, the flexibility of the opening is not impaired and the adhesion at the time of closing is improved. . Moreover, since the strip fastener is wound while pressing the outer periphery of the opening from the outside, the adhesion of the opening is enhanced. Further, since the strip fasteners engage themselves on the front and back sides, if they are wound around the outer circumference of the opening for one or more turns, they will be engaged at the desired position and wound according to any thickness to close the opening. can do. Furthermore, since the strip fastener is separated from the peripheral edge of the opening only by peeling it off, the opening can be easily opened.

By the way, when the opening of the tube or bag is closed by the closing structure having the above structure, the wound belt surface fastener is attached to the tube or bag depending on the ratio of the width of the belt surface fastener to the tightening outer diameter. There is a possibility that it will turn around with one end as a fulcrum and slip out from the tube or bag. In order to prevent this, the configuration described in claim 2 can be adopted.

That is, in the opening portion of the tube or bag, a midway holding member for holding the belt-shaped fastener at a position near the opening is further provided at a position separated from the one end mounting position of the belt-shaped fastener by a predetermined distance. The structure of the closed structure of the cylinder or bag according to claim 1 is that.

According to the closure structure having the above-described structure, when the strip fastener is wound, the strip fastener is held at a position other than the attachment position of the end portion of the strip fastener, so that the width of the strip fastener can be maintained. Even if it is narrow, it will not come out of the wrapped tube or bag.

Further, as a structure using a member suitable as the midway holding member, the structure according to claim 3 can be adopted. That is, the midway holding member is a surface fastener piece made of a female or male engaging member that engages with the male engaging member or the female engaging member of the belt-like surface fastener, and the closure of the cylinder or bag is characterized. That is the structure of the structure.

According to the closure structure having the above-mentioned structure, the strip fastener can be directly engaged with the strip fastener by simply winding the strip fastener, and the strip fastener can be held at the wound position. Moreover, even when removing, it can be easily removed by simply pulling, and the opening can be easily opened.

Further, the configuration according to claim 4 may be adopted.
That is, the midway holding member is a belt-passing member, a part of which is openable and closable, and has a structure of a closed structure of a cylinder or a bag. According to the closing structure having the above-mentioned configuration, the belt passing member can be partially opened and closed, and if the belt passing member is opened in association with the work of removing the belt fastener, the belt passing member can be simply pulled. Easy removal of hook and loop fasteners and easy opening of openings.

By applying the closing structure described above, it is possible to obtain the structure of the electromagnetic shield cylinder according to the fifth aspect. That is, one end opening of a flexible, tubular body having conductivity is fixed to the periphery of a cable insertion port of a housing containing electronic equipment, and the insertion port and the tubular body are closely attached to the outer circumference of the inserted cable. In the electromagnetic shield cylinder for blocking the electromagnetic waves that pass through the cable insertion port of the housing by narrowing the opening on the opposite side, the opening on the narrowed side may be provided.
The electromagnetic shielding cylinder body is provided with the cylinder or bag closing structure according to any one of claims 4 to 4.

According to the electromagnetic shield cylinder having the above-mentioned structure, since the strip-shaped surface fastener has only one end attached, the flexibility of the opening is not impaired, so that the outer circumference of the cable inserted into the cylindrical main body is not damaged. The openings can be narrowed by closely contacting each other, and the gap through which electromagnetic waves pass can be effectively closed. Further, since the strip fastener can be peeled off from the tubular body only by pulling it, the opening can be opened quickly and workability is good. Further, if the engaging members of the hook-and-loop fastener are arranged up to the end of the band, the band-like hook and loop fastener can be wound to the end, regardless of the thickness of the tightened cylinder, and the end is not left.

[0017]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 shows a cable insertion port provided in a housing of an electronic device and an electromagnetic shield cylinder body having the closing structure of the present invention attached thereto. The cylindrical body 10 has a structure in which a flexible metal mesh 12 having conductivity is provided on the inner surface and an insulating synthetic resin sheet 14 is provided on the outer surface.

The fixed frame 1 is attached to one end 10a of the cylindrical body 10.
6 is attached and the cable insertion port 2 provided in the housing 20
It has a structure in which it is fixed by a screw 24 to the periphery of 2. On the outer periphery of the other end 10b of the tubular body 10, one end of the strip-shaped surface fastener 30 and the surface fastener piece 32 are located at the positions as shown in FIG. 1, that is, at positions most distant from each other on the outer periphery of the end 10b. Is attached to. The belt-shaped fastener 30 has a structure in which a male engaging member is provided on the front surface 34 and a female engaging member that engages with the male engaging member is provided on the rear surface 36, and the female engaging member is engaged on the front and back sides. Is equipped with. Further, the hook-and-loop fastener piece 32 has a structure in which a male engaging member similar to the front surface 34 of the belt-like hook-and-loop fastener 30 is disposed and engages with the back surface 36.

Next, the closing structure of the present invention will be described. The housing 20 is formed by the cable insertion port 22 and the screw 24.
A cable bundle 40 is inserted through the inside of the cylindrical body 10 fixed to the. As shown in FIG. 2, the end portion 10 of the tubular body 10
b is tightly attached to the cable bundle 40 and narrowed down, and the belt-shaped fastener 30 is wound from the outside to be closed.

When the tubular body 10 is closed by such a structure, only one end of the strip fastener 30 is attached to the end 10b, so that the flexibility of the end 10b is not impaired. It can be brought into close contact with the cable bundle 40 when narrowed down. Moreover, since the belt-shaped fastener 30 is wound while pressing the outer periphery of the cylindrical body 10 from the outside, no gap can be formed. Further, since the strip fastener 30 is wound around the end 10b of the narrowed tubular body 10 for one or more turns and engages at an overlapping front and back, the end of the cable bundle 40 regardless of the thickness of the cable bundle 40 can be obtained. 10b can be closed. Moreover, the strip fastener 30
Can be wrapped around the end without leaving any trouble. In addition, since the back surface 36 of the strip fastener 30 engages with the strip fastener 32 to hold the strip fastener 30, even if the strip fastener 30 has a narrow width, it is moved upward from the tubular body 10. There is no slipping out.

Further, when the end portion 10b thus closed is opened, the strip-shaped surface fastener is separated from the opening peripheral edge only by peeling it off, so that it can be easily opened. next,
Another embodiment is shown in FIG. In the above-described embodiment shown in FIG. 1, the strip fastener 32 prevents the strip fastener 30 from slipping upward, but here it is shown in FIGS. 3 (A) and 3 (B). As described above, instead of the hook-and-loop fastener piece 32, the fastener 50 is used to remove the hook-and-loop fastener 3.
0 is prevented from slipping upward. Since the configuration of the other parts is the same as that of the above-described embodiment, only the stopper 50 will be described in detail here. One end 50a of the stopper 50 is sewn on the outer periphery of the end 10b of the tubular body 10 at a position farthest from the mounting position of the strip fastener 30. The other end 50b is provided with a hook-and-loop fastener piece 52, on which the male engaging member is arranged, on the inner surface. Further, a surface fastener piece 54 provided with a female engaging member that engages with the male engaging member is attached to a predetermined position of the cylindrical body 10 facing the end portion 50b. To close the end portion 10b of the tubular body 10, as shown in FIG.
First, with the stopper 50 raised, the strip fastener 3
Wrap 0. Then, the end 50b of the stopper 50 is lowered as shown by the arrow in the figure, and the surface fastener piece 52 of the end 50b and the surface fastener piece 54 of the tubular body 10 are engaged. As a result, as shown in FIG. 3 (A), the stopper 50 is in the form of a belt and prevents the strip fastener 30 from slipping upward.

Even with such a construction, the same effects as those of the embodiment shown in FIGS. 1 and 2 can be obtained, and further, whether the winding direction of the belt-shaped fastener 30 is left-handed or right-handed, the stopper 50 is also used. It also has the effect of being held.
Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modes can be adopted without departing from the scope of the present invention.

For example, as shown in FIG. 4 (A), if the end portion 30a of the belt-shaped fastener 30 is such that at least the inner surface of the engaging member is not provided by a predetermined length, the belt-shaped fastener is formed. Since the surface fastener 30 does not completely adhere to the end, the end portion 30a of the strip-shaped surface fastener 30 is easily pinched when opening the end portion of the tubular body 10. Depending on the purpose, it may be selected whether the form is such that it is easy to peel off or the form in which the end is completely adhered without leaving the end as in the embodiment.

In the example shown in FIG. 1, the engaging member of the hook-and-loop fastener 32 is only on the male side. However, as shown in FIG. 4 (B), the surface on which the male-side engaging member is arranged. Fastener pieces 3
By arranging 2a and the surface fastener piece 32b in which the female side engaging member is arranged side by side, the winding direction of the belt-shaped surface fastener 30 may be either left-handed or right-handed.

Further, as shown in FIG. 4 (C), the inner surface of the belt-shaped fastener 30 is wound around the cylindrical body 10 even if the engaging member is provided only at the outermost end 30a. Is enough to tighten. In this case, if the midway holding member is provided, it is sufficient to use a member that does not directly engage with the belt-shaped fastener 30 like the stopper 50 in FIG.

Further, in the example shown in FIG. 3, the stopper 5
The end portion 50b of 0 is formed by the hook-and-loop fastener pieces 52 and 54.
Although it is fastened to the tubular body 10 in a detachable manner, the end 50b may be fastened by a hook instead of the hook-and-loop fastener, or may be fastened to the fixed frame instead of the tubular body.

In addition, although the opening of the cylindrical member is illustrated in the embodiment, it is needless to say that even if it is applied to the opening of the bag-shaped member, the same effect can be obtained.

[0028]

As described above, according to the closing structure of the first to fourth aspects of the present invention, the flexibility of the opening is not impaired, and the adhesion at the time of closing is improved. Moreover, since the strip fastener is wound while pressing the outer periphery of the opening from the outside, the adhesion of the opening is further enhanced. Further, since the strip fasteners engage themselves on the front and back sides, if they are wound around the outer circumference of the opening for one or more turns, they will be engaged at the desired position and wound according to any thickness to close the opening. can do. Furthermore, since the strip fastener is separated from the peripheral edge of the opening only by peeling it off, the opening can be easily opened.

Further, according to the closing structure of the second to fourth aspects, when the band-shaped fastener is wound, the band-shaped fastener is held midway in addition to the attachment position of the end of the band-shaped fastener. , It does not come off from the end of the wrapped tube or bag.

Further, according to the closing structure of the third aspect,
By simply winding the strip fastener, the strip fastener and the intermediate strip fastener are directly engaged with each other, and the strip fastener can be held at the wound position. Moreover, even when removing, it can be easily removed by simply pulling, and the opening can be easily opened.

In addition, according to the closing structure of the fourth aspect, a part of the belt passing member can be opened and closed, and the belt passing member is opened in association with the work of removing the belt-shaped fastener. If so, the belt-shaped fastener can be easily removed by simply pulling, and the opening can be easily opened.

In addition, according to the electromagnetic shield cylinder of the fifth aspect, since the strip-shaped surface fastener has only one end attached, the flexibility of the opening is not impaired.
The opening can be narrowed by making close contact with the outer circumference of the cable inserted in the tubular body, and the gap through which electromagnetic waves pass can be effectively closed. Further, since the strip fastener can be peeled off from the tubular body only by pulling it, the opening can be opened quickly and workability is good. Further, if the engaging members of the hook-and-loop fastener are arranged up to the end of the band, the band-like hook and loop fastener can be wound to the end, regardless of the thickness of the tightened cylinder, and the end is not left.

[Brief description of drawings]

FIG. 1 is a perspective view showing how to attach an electromagnetic shield cylinder of an embodiment to a housing.

FIG. 2 is a perspective view showing a state where the electromagnetic shield cylinder of the embodiment is attached to a housing.

FIG. 3 is a perspective view showing a state in which an electromagnetic shield cylinder of another embodiment is attached to a housing.

FIG. 4 is a diagram showing a part of a modified electromagnetic shield cylinder.

FIG. 5 is a perspective view showing a state in which a conventional electromagnetic shield cylinder is attached.

[Explanation of symbols]

10 ... Cylindrical body, 12 ... Metal mesh, 14 ...
Synthetic resin sheet, 16 ... Fixed frame, 20 ... Housing,
22 ... Cable insertion port, 24 ... Screw, 30 ...
.Band-shaped fasteners, 32 ... Surface fastener pieces, 34 ...
・ Front side, 36 ... Back side, 40 ... Cable bundle, 50
... Stoppers.

Claims (5)

[Claims] 1. In a tube or bag closing structure in which an opening of a flexible tube or bag is squeezed by a band-shaped tightening member to close it, a male engaging member is provided on one surface of the band-shaped tightening member. A female engaging member that engages with the male engaging member is disposed on the other surface, and is a belt-shaped fastener that engages on the front and back sides, one end of which is attached near the opening of the cylinder or bag, A closing structure for a cylinder or a bag, characterized in that the tightening member is wound around the outer circumference of the opening of the cylinder or bag for one or more rounds starting from the attached one end to close the opening. 2. An intermediate holding member for holding the strip fastener at a position in the vicinity of the opening is provided at the opening of the tube or bag at a position separated from the one end mounting position of the strip fastener by a predetermined distance. The tube or bag closing structure according to claim 1, wherein 3. The intermediate holding member is a surface fastener piece made of a female or male engaging member that engages with the male engaging member or the female engaging member of the belt-like surface fastener. The closed structure of the cylinder or bag described in 2. 4. The tubular or bag closing structure according to claim 2, wherein the midway holding member is a belt-passing member, a part of which is openable and closable. 5. A conductive, flexible one end opening of a flexible tubular main body is fixed to a peripheral edge of a cable insertion port of a housing accommodating an electronic device, and a cable inserted through the insertion port and the tubular main body is fixed. In an electromagnetic shield cylinder for blocking electromagnetic waves that pass through a cable insertion port of the casing by closely adhering to the outer periphery and narrowing the opening on the opposite side, the opening on the side to be narrowed may be any one of claims 1 to 4. An electromagnetic shield tube body, comprising the tube or bag closing structure according to any one of 1.