AU2019429303A1

AU2019429303A1 - Sealing band

Info

Publication number: AU2019429303A1
Application number: AU2019429303A
Authority: AU
Inventors: Yoshimasa Takagi
Original assignee: Takagi Kogyosho Co Ltd
Current assignee: Takagi Kogyosho Co ltd
Priority date: 2019-02-12
Filing date: 2019-02-12
Publication date: 2021-08-12
Also published as: CN113453995B; WO2020165958A1; CN113453995A; KR20210124225A

Abstract

Provided is a sealing band with high sealing performance.　When a protrusion 5 of a belt-shaped part 2 inserted into an insertion space 3a is fitted into a recess 3f formed in a first wall 3b, the belt-shaped part 2 is pressed in the direction of a locking piece 3g by the projection 5, and a state occurs in which a tip end 3g2 of the locking piece 3g is abutted against a second wall 3h. As a result, even if a pin, etc., is inserted from a lead-out hole 3e, and an attempt is made to move the locking piece 3g in the direction of the second wall 3h, the locking piece 3g cannot be moved, and therefore a locked state between a locking tooth 9 and the locking piece 3g cannot be released.

Description

SEALING BAND

Technical Field

0001 The present invention relates to a sealing band for preventing theft or unauthorized use by inserting the band through a desired portion to be sealed.

Technical Background

0002 Conventionally, as a sealing band of this type, the sealing tool as described in Patent Document 1 has been proposed. The sealing tool includes a band-shaped engaging piece 1 of which a first engaging means 3 in the shape of a sawtooth is provided on the rear surface, and an engaging portion 2 through which the engaging piece 1 is inserted and locked in a tightened state is provided. Also, a second engaging means 9 including an engaging claw that is engaged with the first engaging means 3 is provided inside the engaging portion 2. Then, the engaging piece 1 is wound around the mouth portion 14a of a bag 14 that is the object to be sealed. The free-end portion la of the engaging piece 1 is inserted through an insertion hole 8 of the engaging portion 2 and is pulled out from a hole facing the insertion hole 8. As a result, the first engaging means 3 is engaged with the second engaging means 9 of the engaging portion 2, so that the mouth portion 14a of the bag 14 is sealed.

Prior Art Patent Document 0003 Patent Document 1: Japanese Published Unexamined Application No. 2005

Summary of the invention

Problems to be resolved by the invention

0004 However, in the above-mentioned conventional art, even when the first engaging

means 3 is engaged with the second engaging means 9, a clearance is formed

between the second engaging means 9 and the inner wall of the engaging portion

2 (FIG. 9 of Patent Document 1), and the second engaging means 9 may be tilted

toward the inner wall by a pin or the like to be inserted from a hole facing the

insertion hole 8, which makes it possible to release the engaged state of the

second engaging means 9 and the first engaging means 3.

That is, the above-mentioned conventional art has the problem of the sealing

performance being low.

0005 Therefore, the present invention has been achieved to solve the above problems,

and its object is to provide a sealing band having a high sealing performance.

Means of solving the problems

0006 To achieve the above-mentioned objective, the first aspect of the sealing band (1)

of the present invention includes:

a band-shaped part (2),

a plurality of locking teeth (9) arranged in the longitudinal direction on the

one surface (2a) of the band-shaped part (2),

a head (3) formed in the direction of the one end (2c) of the band-shaped part

(2), a convex portion (5) formed on the other surface (2b) that is opposite the one surface (2a) between the head (3) and the other end (2d) of the band-shaped part

(2), an insertion space (3a) that is formed inside the head (3) and allows the band

shaped part (2) to be inserted from the other end (2d),

an insertion hole (3d) for inserting the other end (2d) into the insertion space

(3a), a pull-out hole (3e) for pulling out the other end (2d) inserted into the

insertion space (3a) from the insertion space (3a),

a concave portion (3f) formed on a first wall (3b) forming the insertion space

(3a) and into which the convex portion (5) of the band-shaped part (2) inserted

into the insertion space (3a) is to be engaged, and

a locking piece (3g) formed on the second wall (3h) facing the first wall (3b)

across the insertion space (3a) and with which an engaging tooth (9) of the band

shaped part (2) inserted into the insertion space (3a) is to be locked,

characterized in that the locking piece (3g) can be swung with a

predetermined portion of the second wall (3h) as the base (3g1), and its tip (3g2)

protrudes toward the pull-out hole (3e) inside the insertion space (3a), therein

the determined locking tooth (9) out of a plurality of locking teeth (9) of the band

shaped part (2) inserted into the insertion space (3a) is locked with the locking

piece (3g), and, while the convex portion (5) is engaged with the concave portion

(3f), the tip (3g2) of the locking piece (3g) is in contact with the second wall (3h).

0007 When a predetermined locking tooth among a plurality of locking teeth of the

band-shaped part inserted into the insertion space is locked to the locking piece,

and the convex portion is engaged with the concave portion, the tip of the locking

piece is in contact with the second wall. At this time, the locking piece cannot be

moved, even if a pin or the like is inserted through the pull-out hole to move the locking piece toward the second wall, thus making it impossible to release the locked state of the locking tooth and the locking piece.

Moreover, the convex portion of the band-shaped part is engaged with the concave portion of the first wall, which makes it possible to prevent the band shaped part from being pulled out from the pull-out hole while in such an engaged state. Therefore, the sealing performance is improved.

0008 Further, the second aspect of this invention refers to the sealing band (1) according to the first aspect of this invention, characterized in that among the plurality of locking teeth (9) of the band-shaped part (2) that are inserted into the insertion space (3a), a predetermined locking tooth (9) is locked to the locking piece (3g), the convex portion (5) is engaged with the concave portion (3f), and the tip (3g2) of the locking piece (3g) is in contact with the second wall (3h). Thus eventually the locking tooth (9), facing the locking piece (3g) of the plurality of locking teeth (9), is in contact with the locking piece (3g).

0009 Among the plurality of locking teeth, the locking tooth facing the locking piece is in contact with the locking piece, which prevents even a pin or the like from being entered from the insertion hole, thus making it impossible to release such a locked state. Therefore, the sealing performance is further improved.

0010 Further, the third aspect of this invention refers to the sealing band (1) according to the first or the second aspect of this invention, characterized in that in the state whereof the band-shaped part (2) is not inserted into the insertion space

(3a), the clearance between the first wall (3b) and the locking piece (3g) becomes

narrower from the base (3g1) of the locking piece (3g) toward the tip (3g2).

0011

In the state whereof the band-shaped part is not inserted into the insertion space,

the clearance between the first wall and the locking piece becomes narrower

toward the tip from the base of the locking piece, so that the band-shaped part

inserted from the insertion hole can be pressed against the locking piece formed

on the second wall within the insertion space, thus making the tip of the locking

piece to be pressed against the second wall.

Therefore, since the state whereof the tip of the locking piece is in contact with

the second wall is firmly maintained, the sealing performance is further

improved.

0012

Further, the fourth aspect of this invention refers to the sealing band (1)

according to any one of the first to third aspects of this invention, characterized

in that the center (3e1) of the pull-out hole (3e) is displaced from the center (3d1)

of the insertion hole (3d) toward the second wall (3h).

0013 The center of the pull-out hole is displaced from the center of the insertion hole

toward the second wall. Thus, a part located in the insertion space, of which the

band-shaped part is inserted into the insertion hole and is pulled out from the

pull-out hole, can be pressed against the locking piece formed on the second wall.

As such, the state whereof the tip of the locking piece is in contact with the

second wall can be firmly maintained, thus making it possible to improve further

the sealing performance.

0014

Further, the fifth aspect of this invention refers to the sealing band (1) of this

invention according to any one of the first to fourth aspects of this invention,

characterized in that the first wall (3b) is made such that the band-shaped part

(2) located in the insertion space (3a) bends with the surface (2b1) as an apex of

a predetermined portion closer to the insertion hole (3d) than the convex portion

(5) engaged with the concave portion (3f).

0015 The first wall is formed such that the band-shaped part located in the insertion

space bends with the surface as an apex of a predetermined portion closer to the

insertion hole than the convex portion engaged with the concave portion. As such,

strongly pressing the convex portion against the inner wall of the concave

portion makes it possible to maintain firmly the engaged state of the convex

portion and the concave portion.

Therefore, the engaged state of the convex portion and the concave portion is not

released, so that eventually there is no possibility of the band-shaped part being

pulled out from the pull-out hole.

That is, the length of the band-shaped part pulled out from the pull-out hole can

be kept unchanged. If the length is found changed, it is possibly presumed that

someone had tried to release the seal.

Also, the reference numerals in parentheses, above, indicate the correspondence

with the embodiments, as described later, and are not limited to the present

invention.

Effects of the invention

0016 As described, above, the first to fifth aspects of this invention allow for providing a sealing band having a high sealing performance.

Brief description of the drawings 0017 FIG. 1 is the plan view showing the partially omitted surface of the sealing band according to an embodiment of the present invention. FIG. 2 is the front view of the sealing band as shown in FIG.1. FIG. 3 is the rear view of the sealing band as shown in FIG.1. FIG. 4 is an enlarged view of the vertical cross-section of the head constituting the sealing band as shown in FIG. 2. FIG. 5 is an enlarged view of a part of the band-shaped part constituting the sealing band as shown in FIG. 2. FIG. 6 is an explanatory view showing the state in which the band-shaped part is inserted through the head as shown in FIG. 4. FIG. 7 is an explanatory view showing the state in which the convex portion of the band-shaped part is engaged with the concave portion of the first wall and in which the tip of the engaging piece is in contact with the second wall.

Modes for carrying out the invention 0018 Hereinafter, the embodiments of this invention are described in detail with reference to the drawings.

FIG. 1 is the plan view showing the partially omitted surface of the sealing band according to an embodiment of the present invention. FIG. 2 is the front view of the sealing band as shown in FIG. 1. FIG. 3 is the rear view of the sealing band as shown in FIG. 1. FIG. 4 is an enlarged view of the vertical cross-section of the head constituting the sealing band as shown in FIG. 2. FIG. 5 is an enlarged view of a part of the band-shaped part constituting the sealing band as shown in FIG. 2. FIG. 6 is an explanatory view showing the state in which the band shaped part is inserted through the head as shown in FIG. 4. FIG. 7 is an explanatory view showing the state in which the convex portion of the band shaped part is engaged with the concave portion of the first wall and in which the tip of the engaging piece is in contact with the second wall.

0019

[Outline of the configuration of the sealing band] First, the outline of the configuration of the sealing band 1 according to the embodiment of this invention is described. As shown in FIGS. 1 to 3, the sealing band 1 according to the embodiment of this invention includes: the band-shaped part 2, a plurality of locking teeth 9 arranged in the longitudinal direction on the rear surface (one surface) 2a of the band-shaped part 2, the head 3 formed in the direction of the one end 2c of the band-shaped part 2, and the convex portion 5 formed on the surface (other surface) 2b opposite the rear surface (one surface) 2a between the head 3 and the other end 2d. Further, as shown in FIG. 4, an insertion space 3a for inserting the band-shaped part 2 from the other end 2d, and an insertion hole 3d for inserting the other end 2d into the insertion space 3a, and a pull-out hole 3e for pulling out the other end 2d inserted into the space 3a from there, are provided inside the head 3.

Further, on the first wall 3b forming the insertion space 3a, a concave portion 3f, with which the convex portion 5 of the band-shaped part 2 inserted into the insertion space 3a is engaged, is formed. On the second wall 3h facing the first wall 3b across the insertion space 3a, a locking piece 3g, in which the locking teeth 9 of the band-shaped part 2 inserted into the insertion space 3a is locked, is formed.

0020 The locking piece 3g can be swung with the part near the insertion hole 3d (lower

part in FIG. 4) as the base 3gl of the second wall 3h, and the tip 3g2 protrudes

toward the pull-out hole 3e within the insertion space 3a. Further, as shown in

FIG. 7, among the plurality of locking teeth 9 of the band-shaped part 2 inserted

into the insertion space 3a, a predetermined locking tooth 9 is locked to the

locking piece 3g. And, at the time of the convex portion 5 being engaged with the

concave portion 3f, the tip 3g2 of the locking piece 3g is in contact with the second

wall 3h. Furthermore, as shown in FIG. 4, the center 3el of the pull-out hole 3e

is displaced from the center 3d1 of the insertion hole 3d toward the second wall

3h.

0021

[Details of the configuration of the sealing band]

Next, the details of the configuration of the sealing band 1 are described.

As shown in FIGS. 1 to 3, the band-shaped part 2 is formed in a thin and

elongated strip shape, and the rear surface 2a is provided with a locking region

2e in which a plurality of locking teeth 9 are formed at predetermined intervals.

As shown in FIGS. 2 and 3, each locking tooth 9 is arranged along the

longitudinal direction of the locking region 2e. As shown in FIG. 5, the locking

teeth 9 include a locking portion 9a locked to the tip 3g2 (FIG. 4) of the locking

piece 3g, a tooth tip 9b formed on the tip (lower end in FIG. 5) of the locking

portion 9a, and an inclined portion 9c that is inclined from the tooth tip 9b

toward the surface 2b. The tooth tip 9b is formed at an acute angle, and, as

shown in FIG. 3, the tooth-tip surface of the tooth tip 9b is orthogonal to the rear

surface 2a. The locking teeth 9 are formed at a height H, and the distance between the locking teeth 9 adjacent to each other is set to the reference letter L. A bottom portion 9d parallel to the rear surface 2a is formed between the locking teeth 9 adjacent to each other.

0022 In other words, as shown in FIG. 5, each locking tooth 9 is formed in a sawtooth shape when viewed from the front. Also, the height H of each tooth tip 9b of each locking tooth 9 is set to a height that does not protrude from the rear surface 2a of the band-shaped part 2. Further, as shown in FIG. 3, the tooth tip 9b of the locking tooth 9 is formed slightly shorter than the width of the locking region 2e in the short-length direction. Furthermore, as shown in FIG. 2, the locking region 2e, in which the locking teeth 9 are arranged, is formed thicker than the portion other than the locking region 2e.

0023 A convex portion 5 is formed protrusively on the surface 2b of the locking portion 9a. The convex portion 5 is a portion that is engaged with the concave portion 3f (FIG. 4) that is formed inside the head 3. When the convex portion 5 is engaged with the concave portion 3f, the band-shaped part 2 cannot be pulled out from the pull-out hole 3e in the direction indicated by the reference letter F, as shown in FIG. 6. In addition, a tag 4 is formed on the left side of the head 3 in the direction of the one end 2c of the band-shaped part 2. The tag 4 is formed in the shape of a thin rectangular plate, and letters or characters can be written or printed on the front surface or on the rear surface of the tag 4, or a sticker or the like can be attached thereon. A through-hole 8 for inserting a wire, a string, or the like is provided on the tag 4. Further, of the band-shaped portion 2, an arrow shaped cutting-point-indicating section 6 is formed between the head 3 and the locking region 2e. The cutting-point-indicating section 6 indicates the cutting point when the seal of the sealing band 1 is cut and released.

0024

According to the embodiment of this invention, the arrow of the cutting-point

indicating section 6 faces the head 3, and a cuttable region 2f is formed between

the head 3 and the cutting-point-indicating section 6. When cutting and

releasing the seal of the sealing band 1, the cuttable region 2f is cut. Further, an

anti-slip region 2g is provided at the other end 2d of the band-shaped part 2. A

plurality of anti-slip-convex portions 7 are formed on the surface 2b of the anti

slip region 2g. A plurality of anti-slip-convex portions 7 are formed on the surface

2b of the anti-slip region 2g. Each anti-slip-convex portion 7 is for preventing

slipping when the other end 2d, protruding from the pull-out hole 3e of the head

3, is picked up and pulled out. Each anti-slip-convex portion 7 is formed in a

chevron shape, with the top of each such portion 7 facing in the direction of the

other end 2d, and, as shown in FIG. 2, with each such portion 7 being formed so

as to protrude slightly from the surface 2b.

0025 As shown in FIG. 4, the head 3 is formed in a substantially frustum shape when

viewed without the protruding portion 3j formed on the rear-surface side, and it

(the head 3) has the outer surfaces 3m and 3n facing each other and has the

surface 3p and the rear surface 3k. An insertion space 3a for inserting the band

shaped part 2 is formed through the inside of the head 3. An insertion hole 3d

for inserting the other end 2d (FIG. 1) of the band-shaped part 2 is formed on

the rear surface 3k, and the insertion hole 3d communicates with the insertion

space 3a. That is, the insertion hole 3d forms an opening (the opening at the

lower end in FIG. 4) at one end of the insertion space 3a. In addition, a pull-out

hole 3e is formed on the surface 3p, through which to pull out the other end 2d

of the band-shaped part 2 inserted into the insertion space 3a, and the pull-out

hole 3e communicates with the insertion space 3a. That is, the pull-out hole 3e forms the opening (the opening at the upper end in FIG. 4) at the other end of the insertion space 3a.

0026 A concave portion 3f is formed on the first wall 3b, forming the insertion space

3a, and is engaged with the convex portion 5 (FIGS. 1 and 2) of the band-shaped

part 2. Of the inner walls forming the concave portion 3f, the side surface 3f2

facing the insertion hole 3d is an opening that communicates with the insertion

hole 3d. As shown in FIG. 7, the convex portion 5 entering from the side surface

3f2 is engaged with the concave portion 3f, and the top portion 5a of the convex

portion 5 abuts the inner wall3f3 of the concave portion 3f facing the top portion

a. The outer-peripheral surface 5b of the outer-peripheral surface of the convex

portion 5 facing the pull-out hole 3e abuts the inner wall 3f1 of the concave

portion 3f located toward the pull-out hole 3e. This prevents the convex portion

from moving toward the pull-out hole 3e, that is, prevents the band-shaped

part 2 from being pulled out from the pull-out hole 3e.

0027 As shown in FIG. 4, the second wall 3h is formed inside the head 3, so as to face

the first wall 3b across the insertion space 3a. On the one end (lower end in FIG.

4) of the second wall 3h, a bulging portion 3c is formed protrusively within the

insertion space 3a, and a locking piece 3g is formed at the bulging portion 3c.

The portion of the bulging portion 3c, located toward the pull-out hole 3e, is the

base portion 3g1 of the locking piece 3g. In addition, the tip 3g2 of the locking

piece 3g protrudes into the insertion space 3a toward the pull-out hole 3e.

A clearance 3i is formed between the locking piece 3g and the second wall 3h.

The sealing band 1, according to the embodiment of this invention, is made of a synthetic resin such as nylon 66, nylon 6 or the like, and the locking piece 3g is flexible. Therefore, the locking piece 3g falls toward the second wall 3h when pressed by the locking teeth 9 of the band-shaped part 2, and it (the locking piece

3g) restores to the previous state once the pressing force is released. That is, the

locking piece 3g can be swung.

0028 Also, the first wall 3b is formed in a tapered shape. In other words, the first wall

3b is inclined toward the pull-out hole 3e. According to the embodiment of this

invention, the first wall 3b is formed substantially parallel to the imaginary line

V connecting the center 3d1 of the insertion hole 3d and the center 3el of the

pull-out hole 3e. Further, the second wall 3h is formed perpendicular to the pull

out hole 3e. Thus, when the band-shaped part 2 is not inserted into the insertion

space 3a, as shown in FIG. 4, the clearance between the first wall 3b and the

locking piece 3g becomes narrower toward the tip 3g2 from the base 3g1 of the

locking piece 3g.

Further, of the first wall 3b, a vertical wall 3b2, formed vertically from the rear

surface 3k, is formed at the end portion (lower-end portion in FIG. 4) toward the

insertion hole 3d. When the convex portion 5 of the band-shaped part 2 passes

through the side surface 3f2, which is an opening, it (convex portion 5) advances

between the vertical wall 3b2 and the vertical wall 3b2 and is engaged with the

concave portion 3f. In FIG. 4, of the opposing vertical wall 3b2, only the cutting

line of the vertical wall 3b2, located at the back of the drawing, is shown in, but

the cutting line of the vertical wall 3b2 existing in front is not shown. Further,

each vertical wall 3b2 is orthogonal to the insertion hole 3d, and each surface of

each vertical wall 3b2 exposed to the insertion space 3a is parallel to the surface

exposed to the insertion space 3a of the bulging portion 3.

0029 Further, of the first wall 3b, a protruding portion 3b1 protruding into the

insertion space 3a is formed at the end portion (upper end portion in FIG. 4)

toward the pull-out hole 3e.

As shown in FIGS. 6 and 7, the corner portion 3b3 at the lower end of the

protruding portion 3b1 is formed such that the band-shaped part 2, inserted

from the insertion hole 3d, is guided into the pull-out hole 3e while abutting the

surface 2b thereof. In addition, the corner portion 3b3, at the lower end of the

protruding portion 3b1, presses the surface 2b of the band-shaped part 2 inserted

into the insertion space 3a against the locking piece 3g, thus serving the function

of locking the locking portion 9a to the tip 3g2 of the locking piece 3g.

Furthermore, as shown in FIG. 7, the vertical wall 3b2 of the first wall 3b is

formed such that the band-shaped part 2, located in the insertion space 3a, bends

with the surface 2b1 as an apex of the predetermined portion closer to the

insertion hole 3d than the convex portion 5 engaged with the concave portion 3f.

According to the embodiment of this invention, the band-shaped part 2 is bent

in a substantially L-shape with the surface 2b1 as an apex in contact with the

vertical wall 3b2 of the first wall 3b.

0030 In this way, the stress generated by forcibly bending the band-shaped portion 2

can be applied to the convex portion 5. As such, the convex portion 5 is strongly

pressed against the inner walls 3fl and 3f3 of the concave portion 3f, thus

making it possible to maintain firmly the engaged state of the convex portion 5

and the concave portion 3f.

Therefore, the engaged state of the convex portion 5 and the concave portion 3f

is not released. Eventually, then, there is no possibility of the band-shaped part

2 being pulled out from the pull-out hole 3e.

That is, the length of the band-shaped part 2, pulled out from the pull-out hole

3e, can be kept unchanged. If the length is found changed, it is possibly

presumed that someone had tried to release the seal.

Further, the exposed surface of the bulging portion 3c and the rear surface 3k

are orthogonal to each other. According to the embodiment of this invention, the

insertion hole 3d and the pull-out hole 3e have a rectangular cross-section,

respectively.

0031

[How to use the sealing band]

Hereinafter, the method for using the sealing band 1 is described.

Insert the other end 2d of the band-shaped part 2 into the sealing-band insertion

hole provided in the object to be sealed (not shown in the drawings). Then, insert

the other end 2d that has been inserted into the sealing-band insertion hole into

the insertion hole 3d of the head 3, and pull out the other end 2d coming out

from the pull-out hole 3e into the direction indicated by the arrow F, as shown

in FIG.6.

When the anti-slip region 2g (FIG. 1), in which the locking teeth 9 are not formed,

passes through the pull-out hole 3e, the locking region 2e eventually reaches the

insertion space 3a. Then, among the plurality of locking teeth 9 in the locking

region 2e, the first locking tooth 9 that is closest to the other end 2d is locked to

the tip 3g2 of the locking piece 3g.

Then, continuing pulling out the band-shaped part 2, the locked state of the first

locking tooth 9 and the locking piece 3g, which were initially locked, is released.

Then, the locking piece 3g swings toward the second wall 2h by the pressing

force of the tooth tip 9b of the second locking tooth 9, and once the tooth tip 9b

of the second locking tooth 9 overcomes the end edge 3g5 facing the first wall 3b

among each end edge of the locking piece 3g, the locking piece 3g returns to the

previous pre-swing position by the restoring force of the locking piece 3g, itself,

and is locked to the second locking tooth 9. After that, the locking and unlocking

of the third and subsequent locking teeth 9 and the locking piece 3g are repeated

in the same manner.

0032 Then, when continuing pulling out the band-shaped part 2, the convex portion 5,

formed on the surface 2b of the band-shaped part 2, eventually enters from the

open-side surface 3f2 of the concave portion 3f and is engaged with the concave

portion 3f, thus abutting the inner walls 3f1, 3f3 of 3f (FIG. 7). In other words,

the convex portion 5 is locked to the concave portion 3f. As such, the band-shaped

part 2 cannot be pulled out from the pull-out hole 3e. Furthermore, since the

height of the convex portion 5 is greater than the depth of the concave portion

3f, when the convex portion 5 is engaged with the concave portion 3f, more space

is formed between the surface 2b of the band-shaped part 2 and the first wall 3b.

That is, the band-shaped part 2 is pressed toward the locking piece 3g, and the

tooth tip 9b of the locking tooth 9 pressing the sliding surface 3g3 of the locking

piece 3g further pushes the locking piece 3g to the second wall. As a result,

among the end edges forming the tip 3g2 of the locking piece 3g, the end edge

3g4 facing the second wall 3h is pressed against the second wall 3h, and the

clearance 3i (FIG. 6) formed between the tip 3g2 of the locking piece 3g and the

second wall 3h disappears.

0033 Further, as shown in FIG. 7, the band-shaped part 2 is bent in a dogleg shape, with the surface 2b1 as an apex being in contact with the vertical wall 3b2 of the first wall 3b. As such, the convex portion 5 is pressed more strongly by the concave portion 3f, so that the engaged state of the convex portion 5 and the concave portion 3f is firmly maintained. Furthermore, the stress generated by the bending of the band-shaped part 2 makes the band-shaped part 2 strongly press the locking piece 3g, and the locking piece 3g is strongly pressed against the second wall 3h, thus firmly maintaining the contact state between the end edge 3g4 of the locking piece 3g and the second wall 3h.

Further, as shown in FIG. 7, when the locking tooth 9 is locked to the locking piece 3g, and the convex portion 5 is engaged with the concave portion 3f, a space S is created between the surface 2b of the band-shaped part 2 and the first wall 3b. As a result, even if the tip of a tool such as a screwdriver or the like is inserted through the pull-out hole 3e to press the inclined portion 9c of the locking tooth 9 to release the locked state of the locking tooth 9 and the locking piece 3g, the band-shaped part 2 is deformed and escapes to the space S, thus making it impossible to release the locked state of the locking tooth 9 and the locking piece 3g.

Therefore, the band-shaped part 2 cannot be pulled out toward the insertion hole 3d, and eventually the sealing performance is improved.

0034

[Effects of the embodiment] (1) When the sealing band 1 of the above-described embodiment is implemented, the predetermined locking tooth 9, among the plurality of locking teeth 9 of the band-shaped part 2 inserted into the insertion space 3a within the head 3, is locked to the locking piece 3g. At the same time, when the convex portion 5 of the band-shaped part 2 is engaged with the concave portion 3f of the first wall

3b, the tip 3g2 of the locking piece 3g abuts the second wall 3h facing the first

wall 3b. Thus, even if a pin or the like is inserted through the pull-out hole 3e to

move the locking piece 3g toward the second wall 3h, it cannot be done. Therefore,

the locked state of the locking tooth 9 and the locking piece 3g cannot be released.

Moreover, since the convex portion 5 of the band-shaped part 2 is engaged with

the concave portion 3f of the first wall 3b, it is possible to prevent the band

shaped part 2 from being pulled out from the pull-out hole 3e from such an

engaged state.

Therefore, the sealing performance is improved.

0035 (2) Further, among the plurality of locking teeth 9 of the band-shaped part 2

inserted into the insertion space 3a, the locking tooth 9 facing the locking piece

3g is in contact with the locking piece 3g, so that even if a pin or the like is

inserted, the locking tooth 9 and the locking piece 3g that are in contact with

each other prevent such an insertion. Thus it is impossible to release the locked

state of the locking tooth 9 and the locking piece 3g.

Therefore, the sealing performance is further improved.

0036 (3) Further, since the clearance between the first wall 3b and the locking piece

3g becomes narrower toward the tip 3g2 from the base 3g1 of the locking piece

3g, the band-shaped part 2 inserted from the insertion hole 3d can be pressed against the locking piece 3g formed on the second wall 3h, so that the tip 3g2 of the locking piece 3g can be pressed against the second wall 3h.

As such, the state in which the tip 3g2 of the locking piece 3g is in contact with

the second wall 3h is firmly maintained. Therefore, the sealing performance is

further improved.

0037 (4) Further, since the center 3el of the pull-out hole 3e is displaced from the

center 3d1 of the insertion hole 3d toward the second wall 3h, when the band

shaped part 2 is inserted from the insertion hole 3d and pulled out from the pull

out hole 3e, the portion of the bad-shaped part 2 located in the insertion space

3a is pressed against the locking piece 3g formed on the second wall 3h. Thus,

the tip 3g2 of the locking piece 3g is strongly pressed against the second wall 3h.

the second wall 3h is firmly maintained. Therefore, the sealing performance is

further improved.

0038 (5) Further, since the first wall 3b is formed such that the band-shaped part 2

located in the insertion space 3a is bent with the surface 2b1 as an apex and as

being of a predetermined portion closer to the insertion hole 3d than the convex

portion 5 engaged with the concave portion 3f, the convex portion 5 is pressed

against the inner walls 3f1, 3f3 of the concave portion. Thus, such an engaged

state of the convex portion 5 and the concave portion 3f is firmly maintained.

Therefore, the engaged state of the convex portion 5 and the concave portion 3f is not released, so that there is no possibility of the band-shaped part 2 being pulled out from the pull-out hole 3e.

That is, the length of the band-shaped part 2 pulled out from the pull-out hole 3e is kept unchanged. If the length is found changed, it is possibly presumed that someone had tried to release the seal.

0039

[Other Embodiments] (1) The gap 3i (FIG. 4) formed between the locking piece 3g and the second wall 3h changes depending on each value such as the thickness of the locking piece 3g, the shape of the locking piece 3g, the width of the insertion space 3a, the thickness of the band-shape part 2, the height of the convex portion 4, the height of the locking tooth 9 (FIG. 5), or the depth of the concave portion 3f or the like.

Therefore, if the clearance 3i occurs when the locking tooth 9 is locked to the locking piece 3g, and if the convex portion 5 is engaged with the concave portion 3f due to a design change of at least one or more of the values, then each value can be reconsidered to eliminate such a clearance 3i.

(2) If the locking tooth 9 is not locked to the locking piece 3g when the convex portion 5 of the band-shaped part 2 is engaged with the concave portion 3f of the first wall 3b, then at least either the spacing L between the locking teeth 9 (FIG. ), or the number of locking teeth 9, or the forming position of the leading locking tooth 9, or the forming position of the convex portion 5 can be changed to avoid such a situation.

Description of the reference numerals

[0040] 1. Sealing band

2. Band-shaped part

2a. Rear surface

2b: Front surface

2c.: One end

2d: Other end

2e: Locking region

2f: Cuttable region

2g: Anti-slip region

3: Head 3a: Insertion space

3b: First wall 3b1: Protruding portion

3b2: Vertical wall

3d: Insertion hole

3d1: Center

3e: Pull-out hole

3el: Center

3f: Concave portion

3g: Locking piece

3g1: Base

3g2: Tip

3g2: Sliding surface

3g4, 3g5: End edge

3h: Second wall

3i: Clearance

4: Tag

: Convex portion

6: Cutting-point-indicating section 7. Anti-slip convex portion 9. Locking tooth 9a. Locking portion 9b: Tooth tip V: Imaginary line

Claims

1. A sealing band (1) of the present invention including: a band-shaped part (2), a plurality of locking teeth (9) arranged in the longitudinal direction on the one surface (2a) of the band-shaped part (2), a head (3) formed in the direction of the one end (2c) of the band-shaped part (2), a convex portion (5) formed on the other surface (2b) that is opposite the one surface (2a) between the head (3) and the other end (2d) of the band-shaped part (2), an insertion space (3a) that is formed inside the head (3) and allows the band shaped part (2) to be inserted from the other end (2d), an insertion hole (3d) for inserting the other end (2d) into the insertion space (3a), a pull-out hole (3e) for pulling out the other end (2d) inserted into the insertion space (3a) from the insertion space (3a), a concave portion (3f) formed on a first wall (3b) forming the insertion space (3a) and into which the convex portion (5) of the band-shaped part (2) inserted into the insertion space (3a) is to be engaged, and a locking piece (3g) formed on the second wall (3h) facing the first wall (3b) across the insertion space (3a) and with which an engaging tooth (9) of the band shaped part (2) inserted into the insertion space (3a) is to be locked, characterized in that the locking piece (3g) can be swung with a predetermined portion of the second wall (3h) as the base (3g1), and its tip (3g2) protrudes toward the pull-out hole (3e) inside the insertion space (3a), therein the determined locking tooth (9) out of a plurality of locking teeth (9) of the band shaped part (2) inserted into the insertion space (3a) is locked with the locking piece (3g), and, while the convex portion (5) is engaged with the concave portion (3f), the tip (3g2) of the locking piece (3g) is in contact with the second wall (3h).

2. A sealing band (1) according to Claim 1, characterized in that among the plurality of locking teeth (9) of the band-shaped part (2) that are inserted into the insertion space (3a), a predetermined locking tooth (9) is locked to the locking piece (3g), the convex portion (5) is engaged with the concave portion (3f), and the tip (3g2) of the locking piece (3g) is in contact with the second wall (3h), thus eventually the locking tooth (9), facing the locking piece (3g) of the plurality of locking teeth (9), is in contact with the locking piece (3g).

3. A sealing band (1) according to Claim 1 or 2, characterized in that in the state whereof the band-shaped part (2) is not inserted into the insertion space (3a), the clearance between the first wall (3b) and the locking piece (3g) becomes narrower from the base (3g1) of the locking piece (3g) toward the tip (3g2).

4. A sealing band (1) according to any one of Claims 1 to 3, characterized in that the center (3e1) of the pull-out hole (3e) is displaced from the center (3d1) of the insertion hole (3d) toward the second wall (3h).

5. A sealing band (1) according to any one of Claims 1 to 4, characterized in that the first wall (3b) is made such that the band-shaped part (2) located in the insertion space (3a) bends with the surface (2b1) as an apex of a predetermined portion closer to the insertion hole (3d) than the convex portion (5) engaged with the concave portion (3f).