JP2009217068A - Sealing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sealing device requiring no tool for sealing, requiring no segregation when disposed after releasing the sealed state, and facilitating inserting a sealing wire into a through-hole of the sealing device body. <P>SOLUTION: The sealing device 12 comprises the sealing device body 13 and the sealing wire 14 that are formed of the same material, and the sealing wire 14 is a flexibly bendable linear body and has a come-off checking projection part 20. The sealing device body 13 has a connection part 15 integrally connected to one longitudinal end part of the sealing wire 14, and a through-hole 16 for inserting the sealing wire 14. One side of the through-hole 16 is opened to the same side as the sealing wire 14 connection side of the sealing device body 13. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a structure of a sealing tool for sealing, for example, a cover covering a terminal of an instrument such as a watt hour meter to prevent unauthorized opening.

  In order to seal this kind of watt-hour meter etc., for example, as shown in FIG. 9 and FIG. 10 described as a conventional example in Patent Document 1, a sealing wire and a seal that is crimped to both ends of this sealing wire Seals made of lead are usually used. More specifically describing this sealing tool, a horizontal hole is formed in the head of the sealing screw, and an insertion hole formed in alignment with each of the cover member and the base is provided in the vicinity of the sealing screw, A sealing wire is passed through the lateral hole and the insertion hole, and both ends of the sealing wire are inserted from the side surface of the sealing lead into the through hole formed in the sealing lead, and then the sealing lead is clamped by a tool. By doing so, both ends of the sealing wire are bound with sealing lead.

In contrast, a wire rod for sealing (substantially synonymous with the above-mentioned “sealing wire”) and a wire engaging portion (substantially synonymous with the above-mentioned “insertion hole”) (synonymous with the above “sealing lead”); As a sealing tool that is configured such that one end of these wires is connected to the wire engaging portion and the tip side portion of the wire is inserted into the insertion hole of the wire engaging portion while maintaining the configuration consisting of For example, a sealing device for a watt hour meter as disclosed in Patent Document 2 is already known.
JP 2006-65007 A JP 2007-78494 A

  However, since the sealing tool shown in Patent Document 1 as a conventional example requires a process of pinching and crushing the sealed lead with a tool, there is a concern that the sealing work becomes relatively complicated. In addition, when the sealing lead of the sealing tool is made of lead, but the sealing wire uses a synthetic resin material, along with stricter disposal standards today, when removing the sealing tool, Since it becomes necessary to separate and discard the sealed lead and the sealed wire, there is a concern that the disposal of the sealing tool becomes complicated.

  In this regard, in the sealing tool disclosed in Patent Document 2, after the wire is inserted into one opening of the insertion hole of the wire engaging portion and fed out from the other opening end, the tip of the wire engaging portion is inserted into the insertion hole. The bolt part is screwed into the screw hole that communicates with the screw, and the tip side of the bolt part presses the wire rod against the deepest side of the screw hole, thereby fixing the wire rod to the wire anchoring portion. It is said that work is possible.

  However, the sealing tool shown in Patent Document 2 requires a process of inserting the wire into one opening of the insertion hole of the wire engaging portion and feeding it out from the other opening. In this configuration, it is conceivable that the locked portion provided in the wire becomes an obstacle, and the work of inserting the wire into the insertion hole becomes complicated. And in the sealing tool shown by patent document 2, as shown in the FIG.1 (c), an insertion hole is a watt-hour meter from the surface (back surface) side in which a watt-hour meter is attached among wire rod engaging parts. Since it is configured to extend toward the front surface side, the wire material must be inserted into the insertion hole of the wire engaging portion from the back side, so that the work of inserting the wire material into the insertion hole may become more complicated. . Moreover, in the sealing tool shown by patent document 2, it is in the state after inserting the wire which the one end was connected with the top surface of the wire engaging part through the insertion hole extended from the back surface of the wire engaging part to the surface. In this case, as shown in FIG. 1 (d), it is considered that the sealing tool is hung forward from the metal part of the sealed portion of the watt hour meter, and the sealing tool deteriorates the appearance and the like. It is done.

  Moreover, in the sealing tool shown in Patent Document 2, the correspondence is not shown for the extra tip portion out of the insertion hole of the wire, and it looks like the extra tip portion of the wire remains. If the remaining tip portion is cut with a tool such as pliers, the meaning of performing the sealing work manually without using a tool will be lost.

  Therefore, the present invention eliminates the need for any work using tools such as pliers, and does not cause inconvenience in disposal even if separation after each material is required for disposal after release of the seal. It aims at providing the sealing tool which simplified the operation | work for letting a sealing line pass to the through-hole of this.

  The sealing device according to the present invention is configured to include a sealing device main body and a sealing wire formed of the same material, and the sealing wire is a flexible linear body that bends in any direction and comes off. The sealing tool main body has a through-hole through which one end in the longitudinal direction of the sealing line is inseparably connected and through which the sealing line can be inserted. One of the through-holes The side is characterized by opening on the same side as the side to which the sealing line is connected (Claim 1). The same material used for the sealing tool main body and the sealing wire is, for example, a synthetic resin material such as plastic in consideration of ease of integral molding. The sealing wire drop prevention means is, for example, a protruding portion protruding in an umbrella shape from the side surface of the sealing wire, and the diameter dimension at the position where the protruding portion of the sealing wire is most widened is the enlarged hole portion of the through hole of the sealing tool body. It is larger than the inner diameter dimension except for.

  As a result, the sealing tool main body and the sealing wire constituting the sealing tool are always formed of the same material.Therefore, the sealing tool main body and the sealing wire are separated from each other even when the sealing tool is removed and discarded. In addition to eliminating the need for separate disposal, it is also easy to manufacture a sealing tool in which the sealing tool body and the sealing wire are integrated from one mold. Further, since the through hole of the sealing tool body opens to the same side as the side to which the sealing wire of the sealing tool body is connected, for example, compared to the case where the through hole is opened to the back side of the sealing tool body. The operation of drawing the sealing line to the opening of the through hole is simple, and the tip of the sealing line can be guided to the opening of the through hole by visual observation, so that the operation of passing the sealing line through the through hole is simplified. Furthermore, the sealing tool can be in a state where the protruding piece is sandwiched in the vertical direction with respect to the portion of the protruding piece of the instrument where the sealing line is passed, and the sealing line is passed through the sealed portion. Therefore, the sealing tool is not obstructed, and the appearance of the state in which the sealing tool is attached can be relatively improved.

  Here, the said sealing tool main body is comprised by the some component, a groove part is provided in the surface which these component parts oppose, and when the said component parts are match | combined, the said through-hole forms from the said groove part (Claim 2).

  Thereby, it becomes easy to form the diameter-expanded part with a larger diameter than the other part of the through-hole, even if it is the opening end or the middle part in the axial direction with respect to the through-hole of the sealing tool body.

  Moreover, the said sealing tool main body has the hollow part formed between the site | part with which the said sealing wire was connected, and the opening part of the said through-hole (Claim 3). Thus, by placing the opening peripheral part of the through-hole in the part through which the sealing line is passed, the sealing tool body is held in a state of being in close contact with the part through which the sealing line is passed. Will be.

  On the other hand, the sealing line is formed with a fractured portion in a range exposed from the through hole of the sealing tool main body in a state of passing through the through hole of the sealing tool main body in the portion on the tip side (Claims). 4). As a result, the sealing line is broken at the break by pulling the sealing line strongly, so that it is not necessary to use a tool to cut the portion exposed from the through hole of the sealing tool.

  In addition, the sealing line extends from the end on the side connected to the sealing tool main body in a state of passing through the through hole of the sealing tool main body to the end side from a portion located in the through hole of the sealing tool main body. The fracture | rupture part is formed in the range used as (Claim 5). In this way, when trying to illegally use a meter such as a watt-hour meter, pulling with the exposed part from the end of the sealing line from the end to the part entering the through hole of the sealing body Since the sealing line is cut at the broken portion, it is possible to objectively confirm that such an illegal act has been attempted.

  As described above, according to these inventions, the sealing tool body is usually formed of a synthetic resin material such as plastic, and the sealing wire is formed of a metal such as copper wire. Since the wire is always made of the same material, there is no need to separate the sealing tool body from the sealing wire after separating the sealing tool, and separate and dispose of it separately. It is possible to simplify disposal.

  Further, according to these inventions, since the through hole of the sealing tool main body is opened on the same side as the side to which the sealing wire of the sealing tool main body is connected, the operation of drawing the tip of the sealing wire to the opening of the through hole is performed. Further, since the tip of the sealing line can be guided to the opening of the through hole by visual observation, it is possible to relatively simplify the operation of passing the sealing line through the through hole.

  In particular, according to the invention described in claim 2, with respect to the through hole of the sealing tool main body, the diameter-enlarged portion whose diameter is larger than the other part of the through hole even at the opening end or in the middle of the axial direction. Therefore, the degree of freedom of the inner shape of the through hole is improved.

  In particular, according to the invention described in claim 3, by placing the opening peripheral portion of the through hole in the portion through which the sealing line is passed in the recess of the sealing tool body, the sealing tool body is passed through the sealing line. Therefore, the appearance of the state sealed with the sealing tool is improved, and the entire range of the instrument to which the sealing tool is attached becomes relatively compact.

  In particular, according to the invention described in claim 4, since the sealing line is broken at the broken portion by strongly pulling the tip of the sealing wire exposed from the through hole of the sealing tool body, the tip exposed from the through hole of the sealing tool body Use of a tool to cut and eliminate the portion can be eliminated.

  In particular, according to the invention described in claim 5, in order to cancel the sealing of the meter such as a watt hour meter for unauthorized use of the electric power, the sealing wire enters the through hole of the sealing tool body from its end. When pulling with the exposed part from the sealing tool body up to the part, the sealing line breaks at the broken part, so it is easy to objectively confirm that such fraud has been attempted It becomes possible to strengthen the control against illegal use of power.

  Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings.

  In FIG. 1, a watt hour meter 1 fixed to the instrument panel 2, a cover 3 covering the entire watt hour meter 1, and a through hole 5 and a cover of a projecting piece 4 projecting from the lower side of the instrument panel 2 in the vertical direction The sealing tool 12 which seals opening and closing of the cover 3 by letting the sealing wire 14 pass through the through-hole 7 of the protrusion piece 6 which protruded from the downward direction of 3 vertical direction is shown.

  The watt-hour meter 1 itself used in the present invention is a known one, and as shown in FIGS. 1 (a) and 1 (b), it is composed of an instrument part 8 and a terminal part 9, and includes a screw or the like. This is fixed to the instrument panel 2 as described above. The cover 3 is in the shape of a casing with the instrument panel 2 side open, and is provided with a viewing window 10 for viewing the display of the instrument section 8 of the watt-hour meter 1.

  The sealing tool 12 includes a sealing tool main body 13 and a sealing wire 14, and the sealing tool main body 13 and the sealing wire 14 are formed of the same material such as plastic or other synthetic resin material. Has been.

  Among these, the sealing tool main body 13 includes a connecting portion 15 in which one end in the longitudinal direction of the sealing wire 14 is inseparably connected, and a through hole 16 having one side opened on the same side as the side on which the connecting portion 15 is provided. And have. And the through-hole 16 has the guide groove path 17 extended toward the outer side of the sealing tool main body 13 from the through-hole 16 in the vicinity of the opening end by the side of the connection part 15, Thereby, connection of the through-hole 16 is carried out. When the sealing wire 14 is inserted from the opening on the side of the portion 15, the leading end portion of the sealing wire 14 abuts against the inner surface of the guide groove 17 to be guided to the opening of the through hole 16. The operation of passing 14 through the through-hole 16 is simplified.

  Further, the through-hole 16 has an inner diameter enlarged hole portion 16a having substantially the same shape as a protruding portion 20 of a sealing wire 14 to be described later in the middle of the axial direction. As a result, when the protruding portion 20 of the sealing wire 14 is disposed in the enlarged diameter hole portion 16a, the protruding portion 20 becomes a resistance even if the protruding portion 20 is pulled in the direction opposite to the insertion direction with respect to the sealing wire 14. 14 can be prevented from coming off.

  Furthermore, the sealing tool main body 13 has a recess 18 between the connecting portion 15 and the opening of the through hole 16, and the lower edge of the through hole 7 of the protruding piece 6 of the instrument panel 2 is formed in the recess 18. By attaching the sealing tool 12 so that the part and the lower edge part of the through hole 5 of the protruding piece 4 of the cover 3 are located, the sealing tool main body 13 becomes the protruding piece 4 as shown in FIG. 6, the sealing tool main body 13 is not obstructed when any work is performed on the watt hour meter 1, and the appearance of the sealing tool 12 attached to the watt hour meter 1 is also improved. .

  The sealing wire 14 is formed of a flexible linear body so that it can be bent in any direction, and a plurality of protrusions 20 are provided as means for preventing the through-hole 16 from coming off. The structure of the protrusion 20 is not particularly limited. As shown in FIG. 3 (a), even if the elastic film-like member is extended in a substantially umbrella shape for a while, as shown in FIG. As shown in FIG. 5, it may have a substantially truncated cone shape having elasticity.

  Further, as shown in FIGS. 4 and 5, the sealing line 14 is exposed from the through hole 16 of the sealing tool main body 13 in a state of passing through the through hole 16 of the sealing tool main body 13 in the tip side portion. The fracture | rupture part 21 is formed in the range which becomes. The fracture portion 21 may have a configuration in which the diameter dimension is narrower than other portions of the sealing wire 14 or may have a configuration in which a wedge-shaped cut is made from one side thereof. Thereby, when the sealing wire 14 is inserted into the through hole 16 of the sealing tool main body 13, if the tip portion of the sealing wire 14 comes out of the through hole 16, the extra tip portion is held by hand. Since the broken portion 21 is cut by pulling it more than a certain degree, it is not necessary to cut off an excess portion from the through hole 16 of the sealing wire 14 with a tool such as pliers. Is no longer needed.

  Further, as shown in FIGS. 2 and 4 to 6, the sealing wire 14 extends from the end on the side connected to the sealing tool body 13 while passing through the through hole 16 of the sealing tool body 13. The fracture portion 21 is also formed in a range up to a portion located in the through hole 16. As a result, when the watt-hour meter 1 is used illegally and is pulled with a portion of the sealing wire 14 exposed to the outside from the sealing tool body 13, the sealing wire 14 is broken at the fracture portion 21. This makes it possible to objectively confirm that the user has attempted illegal acts, and to strengthen the control of illegal activities.

According to the above configuration, the sealing wire 14 is bent in an inverted U shape as shown in FIG. 4, the tip of the sealing wire 14 is guided to the through hole 16 side of the sealing tool body 13, and the guide groove 17 is used. And
By inserting the sealing wire 14 into the opening of the through-hole 16 and further pressing the sealing wire 14, the tip of the sealing wire 14 is opposite to the guide groove 17 side of the through-hole 16 as shown in FIG. 5. The protrusion 20 of the sealing wire 14 is located in the enlarged diameter hole 16a of the through hole 16 as it exits from the opening, and the protruding part 20 returns to the original state by the restoring force and expands into the enlarged diameter hole 16a. 14 can be prevented from coming off from the through hole 16 (particularly from the guide groove 17 side). Then, by holding the tip portion of the sealing wire 14 from the through hole 16 and pulling it strongly, the sealing wire 14 is broken at the break portion 21 and the portion of the sealing wire 14 that has exited the through hole 16 is almost eliminated.

  On the other hand, in this embodiment, as shown in FIG. 6, the sealing tool main body 13 is flexible for connecting the two component parts 23 and 24 and the component parts 23 and 24. It is comprised with the connection part 25 which has.

  In the component parts 23 and 24, the groove portions 26 and 27 that form the through-hole 16 are provided on the inner surfaces 28 and 29 where the component parts 23 and 24 abut against each other. 30 is formed so as to protrude, and an inner surface 29 of the component 24 is formed with an engagement groove 31 in which the engagement protrusion 30 is engaged and fixed.

  In this embodiment, in order to form the above-mentioned enlarged-diameter hole portion 16a, a substantially semi-conical truncated conical enlargement in which half of the projection portion 20 divided along the axial direction is accommodated in the middle of the groove portions 26 and 27. Groove portions 26a and 27a are provided on the inner surfaces 28 and 29 of the component parts 23 and 24, and in order to form the guide groove path 17, the groove portions 26 and 27 are disposed in the vicinity of the opening ends of the groove portions 26 and 27. Notches 32 and 33 are extended along the radial direction.

  In addition, the component parts 23 and 24 are respectively formed with depressions 34 and 35 to constitute the depression 18. And the connection part 15 with which the end of the longitudinal direction of the sealing wire 14 is connected is provided in the component 24 side in this Example. However, it goes without saying that the connecting portion 15 may be provided on the component part 23 side.

  With such a configuration, when the connecting portion 25 is bent and the inner surface 28 of the component part 23 and the inner surface 29 of the component part 24 abut against each other, the engagement protrusion 30 of the component part 23 engages with the component part 24. A sealing tool body 13 having a through hole 16 having a diameter-enlarged hole portion 16 a and a guide groove path 17 that is firmly engaged with the groove 31, and a connecting portion 15 of the sealing tool body 13 having one end in the longitudinal direction thereof. And the sealing tool 12 integrated with the sealing wire 14 having the protrusions 20 for preventing removal is assembled.

  In FIG. 7, the modification of the sealing tool 12 which concerns on this invention is shown. However, in this sealing tool 12, since the shape of the through hole 16 of the sealing tool 12, that is, the shape other than the shape of the groove portions 26 and 27 of the sealing tool body 13, is the same as that of the previous embodiment, About the structure, the same code | symbol as the previous Example is attached | subjected, and the description is abbreviate | omitted.

  The sealing tool 12 shown in FIG. 7 is adapted to the outer shape of the protruding portion 20 of the sealing wire 14 in the vicinity of the opening end of the through hole 16 on the connecting portion 15 side, as shown in FIG. It has an enlarged diameter portion 16b that is tapered. That is, as shown in FIG. 7A, when the sealing tool 12 is mainly composed of the component parts 23 and 24, the projections 12 are formed so as to form the above-mentioned enlarged diameter portions 16b in the groove portions 26 and 27. Expanded groove portions 26b and 27b having a substantially semi-conical truncated cone shape in which half of the portion 20 divided along the axial direction is accommodated are formed.

By forming such a through-hole 16, it becomes easy to insert the tip end portion of the sealing wire 14 into the opening end of the through-hole 16, so that the work of passing the sealing wire 14 through the through-hole 16 is simplified.
And by having comprised the sealing tool main body 13 by the two component parts 23 and 24, the opening diameter of the through-hole 16 of the sealing tool main body 13, and the diameter expansion which becomes larger diameter than the other site | part of the through-hole 16 in the middle Providing the holes 16a and 16b in a simple process is facilitated.

  Finally, the sealing line 14 is disposed along the groove of the groove portion 26 of the component part 23 in a state where the component parts 23 and 24 of the sealing tool main body 14 are opened, and the component parts 23 and 24 are closed. Thus, the sealing wire 14 may be in a state of passing through the through hole 16 of the sealing tool body 13. Thereby, it is not necessary to pass the sealing wire 14 from the one opening side to the through hole 16 of the sealing tool body 13.

FIG. 1 is an explanatory view showing an example of use of a sealing device according to the present invention, FIG. 1 (a) is a front view showing a state in which a watt hour meter is sealed with the same sealing device, and FIG. Sectional drawing which looked at the state by which the watt hour meter was sealed with the sealing tool same as the above, FIG.1 (c) is the principal part enlarged view of FIG.1 (b). FIG. 2 is an explanatory diagram showing the overall configuration of the sealing tool of the above. FIG. 3 is a cross-sectional view showing a configuration of a protrusion that is a means for preventing the sealing line from forming the sealing device of the above, FIG. 3A shows a configuration in which the protrusion of the same is formed in an umbrella shape, FIG. 3B shows a configuration in which the above-described protrusions are formed in a substantially truncated cone shape. FIG. 4 is an explanatory diagram illustrating a process of trying to pass a sealing line through the through hole of the sealing tool body. FIG. 5 is an explanatory view showing a state in which the sealing wire is passed through the through hole of the sealing tool body and the leading end of the sealing wire comes out of the through hole. FIG. 6 is an explanatory diagram showing the configuration of the component parts constituting the sealing tool main body and the state before the assembly thereof. FIG. 7 is an explanatory view showing a modified example of the shape of the through hole of the sealing tool main body, and FIG. 7 (a) is an explanation showing the configuration of the constituent parts constituting the sealing tool main body and the state before the assembly. FIG. 7 and FIG. 7B are explanatory views showing a process of trying to pass a sealing line through the through hole of the sealing tool body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 12 Sealing tool 13 Sealing tool main body 14 Sealing wire 16 Through-hole 18 Depression part 20 Protrusion part 21 Breaking part 23 Component part 24 Component part 28 Inner surface 29 Inner surface

Claims (5)

Consists of a sealing tool body and a sealing wire formed of the same material,
The sealing wire is a flexible linear body that bends in a free direction and has a means for preventing removal.
The sealing tool body has a through hole in which one end in the longitudinal direction of the sealing wire is inseparably connected and through which the sealing wire can be inserted, and the sealing wire is on one side of the through hole. A sealing device characterized by opening on the same side as the connected side.   The said sealing tool main body is comprised by the some component, a groove part is provided in the surface which these component parts oppose, and when the said component parts are match | combined, the said through-hole is formed from the said groove part The sealing tool according to claim 1.   The sealing tool according to claim 1 or 2, wherein the sealing tool body has a recess formed between a portion where the sealing wire is connected and the opening of the through hole.   The rupture portion is formed in a range where the sealing wire is exposed from the through hole of the sealing tool main body in a state of passing through the through hole of the sealing tool main body in a portion on the tip side thereof. The sealing tool in any one of Claim 1, Claim 2, or Claim 3.   The sealing line extends from the end on the side connected to the sealing tool main body in a state of passing through the through hole of the sealing tool main body to the end side from a portion located in the through hole of the sealing tool main body. The sealing tool according to any one of claims 1, 2, 3, and 4, wherein a fracture portion is formed in the range.

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