JPS6149673B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a sealing device for a telephone toll box, etc., and its purpose is to fit and cover a sealing tool with a single touch onto a protrusion provided on an object to be sealed, such as a telephone toll box. , a sealing device that is extremely convenient because it can extremely easily seal an object to be sealed and can also be unsealed after use, and also allows manufacturing of sealing tools to be done easily and inexpensively. We are trying to provide the following.

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

In this specification, up and down, right and left, and front and back are based on FIG. 2, and upper means the upper side of FIG. 2, lower means the lower side of the same figure, left means the left side of the same figure, and right means the right side of the same figure. The front refers to the front side of the same drawing sheet, and the rear refers to the back side of the drawing sheet.

In FIGS. 1 to 3 showing a first embodiment of the present invention, 1 is a telephone toll box, 2 is a cover that can be opened and closed attached to the rear upper end of the toll box, and this is a front end attached to the upper surface of the telephone toll box 1. It covers the opening 3 provided so as to exclude the portion. A long hole 4 is provided in the center of the upper surface of the lid 2, into which coins inserted from the coin slot of a telephone (not shown) are inserted. Reference numeral 5 denotes a short cylindrical projection which is vertically caulked to the upper wall 7 of the front end of the telephone toll box 1, and an annular recess 6 into which a claw is fitted is provided at the tip thereof. Reference numeral 8 denotes a plate-shaped latch provided horizontally at the center of the front end of the lid 2, and a protrusion insertion hole 9 is bored in this latch.

Reference numeral 10 denotes a sealing tool, which is composed of a box-shaped sealing tool body 11 that opens downward, and a detent pawl 12 housed inside the sealing tool body 11. The seal main body 11 is made of synthetic resin such as ABS, polyethylene, polypropylene, or the like.

13, 13 are the left and right side walls 1 of the seal main body 11
Vertical protrusions 5 and 15 are provided inwardly protruding portions near the front end; 14 is the upper wall 16 of the seal main body 11;
These vertical protrusions 13, 13 and the horizontal protrusion 14 form a horizontal protrusion that projects inward, and the inside of the sealing device main body 11 forms a rear protrusion accommodating portion 18;
It is divided into a front pawl support accommodating portion 19 and a pawl escape space 20 in the middle thereof. 21 are the left and right side walls 15, 15 of the seal main body 11, and the upper wall 1
6 and the front and rear side walls 17, 17, respectively, are grooves each having a V-shaped cross section, and these form a series of thin-walled parts 22 for breaking. Note that the thickness of the thin wall portions 22 of the left and right side walls 15, 15 and the front and rear side walls 17, 17 decreases as they reach their upper ends, and after use, the sealing device can be removed by applying external force when opening. The main body 11 is designed to be easily broken.

The detent pawl 12 is supported via a connecting portion 23 by a pawl support 24 which is square when viewed from the front. These claws 12, connecting portions 23, and claw supports 24 are integrally made of synthetic resin such as ABS or Diuracon, and have a generally V-shape as a whole when viewed from the side. Therefore, the detent pawl 12 is urged away from the pawl support 24 by the elastic force of the material. The tip of the claw 12 is curved into an arc shape when viewed from a plane, along the wall surface of the annular recess 6 of the projection 5. The claw support 24 is housed in the housing portion 19 of the seal main body 11, and its top wall is fixed by being fused to the upper wall 16 of the seal main body 11, and the distal end of the detent claw 12 is fixed. is always urged to protrude into the protrusion accommodating portion 18 by its elastic force.

The sealing tool 10 has a width of 8 mm and a length of 11 mm, for example.
mm, height 7 mm, and telephone toll box 1
For example, the protrusion 5 provided on the
It has a size of 10mm. To seal the telephone bill box 1 with the sealing tool 10, after closing the lid 2 and engaging the latch 8 with the protrusion 5, the sealing tool 10 is pushed over the portion of the protrusion 5 that projects upward from the latch 8. Just that is enough.

That is, a seal 10 is attached to the protrusion 5 of the telephone toll box 1.
is pushed over from above so that the protrusion 5 fits into the protrusion accommodating portion 18 of this, the protrusion 5 is relatively
The large-diameter head 5a moves inside the housing portion 18 from the bottom to the top. As a result, the detent pawl 12 is once pushed out from the housing portion 18 into the pawl escape space 20 against the resilient force. When the head 5a of the protrusion 5 reaches the deepest part of the accommodating portion 18, the detent pawl 12 fits into the annular recess 6 of the protrusion 5 due to its elastic force.
The tip of the detent pawl 12 engages with the top wall or head 5a of the annular recess 6 from below. This makes it completely impossible to remove the sealing tool 10 from the protrusion 5 as it is, and the sealing of the telephone toll box 1 is completed.

In order to remove the seal 10 from the protrusion 5 after collecting the telephone toll box 1, it is sufficient to pick up the seal body 11 with an appropriate tool and apply an external force to slightly twist it. The main body 11 is easily broken through the thin wall portion 22, and the telephone toll box 1 can be opened easily.

4 to 6 show a second embodiment of the invention. Here, the difference from the first embodiment is that the detent pawl 12 is provided on the pawl support 24 in a cut-and-raised shape, and the connecting portion 23 is omitted. The claw support 24 has a general shape when viewed from the front, and has a notch 2 in the center.
The claw 12 is designed to be released into the space 5.

Further, in this second embodiment, a synthetic resin protrusion 5 having a large-diameter head 5a and an annular recess 6 on the lower side is attached to a plate-shaped receiver 26 provided in advance on the telephone toll box 1. A sealing tool 10 is fitted onto the protrusion 5 to seal it. The plate-shaped bill receiver 26 is installed in the existing telephone toll box 1, but its size and shape may not be constant. By covering the protrusions 5 having the same shape, it is possible to seal all the telephone toll boxes 1 with the sealing tool 10 of the same size.

The other points of this second embodiment are the same as those of the first embodiment, and the same parts are given the same reference numerals in the drawings.

FIG. 7 shows a third embodiment in which the present invention is applied to a watt meter seal. In the figure, the lid 27 of the watt meter is fixed to the meter body by a bolt (protrusion) 5 having a large-diameter head 5a and a narrow annular groove 6 below the head 5a. A sealing tool 10 is fitted over the wattmeter to seal the wattmeter. The detent pawl 12 of the sealing device 10 is made slightly smaller than that of the first embodiment described above in order to fit into the narrow annular recess 6 of the bolt 5, but the other structure of the sealing device 10 is the same. Therefore, the same reference numerals are given to the same parts in the drawings.

In each of the above embodiments, the synthetic resin claw support 24 is fixed to the seal main body 11 by fusion, but it is of course possible to fix these by adhesion or welding. Others, claw support 24
Escaping prevention protrusions are provided on both the left and right sides of the seal body 11, and these protrusions are attached to the left and right side walls 15, 1 of the seal main body 11.
5, so-called mechanical fixation may be employed. Further, the detent pawl 12 may be made of not only synthetic resin but also metal such as stainless steel.

Further, in the above embodiment, a case was shown in which a telephone bill box and a watt meter were sealed using the sealing device of the present invention, but the present invention can be similarly applied to sealing other gas meters, water meters, etc. It is something that can be done.

As described above, this invention comprises a protrusion 5 provided at a predetermined location of an object to be sealed 1 such as a telephone toll box and having a large-diameter head 5a at the tip, and a substantially box-shaped sealing device body opening downward. 11 and a sealing device 10 consisting of a detent pawl 12 housed inside the sealing device, the sealing device includes a protrusion accommodating portion 18 that opens downward in the sealing device main body 11, and a pawl support accommodating portion that is continuous with the protrusion accommodating portion 18. 19 is provided, and the support body 24 integrally provided with the detent claw 12 is housed in the housing portion 19 and is joined to the seal main body 11 by fusion. The connection with the claw support body 24 integrally provided with the claws 12 is very strong, and a reliable seal can be achieved. Moreover, both the seal main body 11 and the claw support 24 are very simple in shape, and therefore the seal can be manufactured very easily and at low cost, and inexpensive seals can be supplied to the market.

In addition, the upper wall 16 and side walls 15, 1 of the seal main body 11
7 is provided with a groove having a V-shaped cross section, and the bottom wall portion of the groove serves as a thin-walled portion 22 for breaking. Therefore, the seal main body 11 is very easily broken at this thin-walled portion 22, and therefore the third It is possible to reliably prevent unauthorized tampering by unauthorized persons, and the sealing tool can be easily opened after use, making it extremely convenient.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the telephone toll box before the sealing device is attached, and FIG. 2 is an enlarged vertical sectional view showing the first embodiment of the present invention, showing the sealed state. FIG. 3 is a sectional view taken along the line of FIG. 2. FIG. 4 is an enlarged vertical sectional view showing a second embodiment of the present invention, showing the sealed state. FIG. 5 is a sectional view taken along the line of FIG. 4, and FIG. 6 is a perspective view of a pawl support with a detent pawl. FIG. 7 is an enlarged vertical sectional view showing a third embodiment of the present invention, showing the sealed state. 1...Telephone charge box (sealed object), 5...Protrusion,
5a...Large diameter head, 6...Annular recess, 10...Sealing tool, 11...Sealing tool body, 12...Detent claw,
18...Protrusion accommodating part, 19...Claw support accommodating part,
22...Thin part for breaking, 24...Claw support.

Claims (1)

[Claims] 1. A protrusion 5 provided at a predetermined location on an object to be sealed 1 such as a telephone bill box and having a large diameter head 5a at the tip.
and a sealing device 10 comprising a substantially box-shaped sealing device main body 11 opening downward and a detent claw 12 housed inside the sealing device 10. Accommodation part 18
and a claw support accommodating portion 19 connected thereto, and a support 24 integrally provided with the detent claw 12 is joined to the seal main body 11 by fusion while housed in the accommodating portion 19, Upper wall 16 of seal main body 11
A sealing device for a telephone toll box, etc., in which side walls 15 and 17 are provided with grooves having a V-shaped cross section, and the bottom wall portion of the groove is a thin wall portion 22 for breaking.