JPH11223287A - Boot band - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a boot band having good assembling workability wherein no slackening occurs in a fastening force after assembling. SOLUTION: A boot band 10 is composed of a belt-like metallic band body 11 having first and second ends 13 and 14. This band body 10 is provided in a member 17 to be fastened in a rolled state like a ring such that the first end 13 is stacked in the outside. The band body 11 is provided with an ear-like plastic deformation part 30 for causing plastic deformation during assembling, a locking hole 40 and a locking projection 41 for preventing a part near the first end 13 from being separated from an inner overlapping part 22, a receiving hole 50 having a locking part 51, a projecting part 56 having a vertical wall 55 protruded almost vertically in a plate thickness direction. The vertical wall 55 is engaged with the locking part 51 from the plate thickness direction of the band body 11 when the band body 11 is fastened up to a specified peripheral length.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a boot band used for fixing a boot made of rubber or resin to a connection partner.

[0002]

2. Description of the Related Art Boots made of rubber, resin, or the like are used as one component of an automobile or the like. The boot referred to in this specification also includes a cylindrical member such as a hose or a tube. In order to fix the boot to the connection partner, a boot band made of a metal band-shaped member has been conventionally used. An example of this type of boot band is US
P. 4, 622, 720 (conventional example).

The conventional example is called a so-called caulking type band. This type of band has ears (plastically deformed portions) in addition to claws and holes. In this case, the band body is wrapped around a member to be tightened such as a boot, a hook is hooked into a predetermined hole, and then the ear portion is plastically deformed by a jig to reduce the circumference of the band body, thereby tightening the band body. A banding force is applied to the band body for the member.

[0004]

In the case of the above-described caulking-type boot band, even if the ear portion is plastically deformed to tighten the band body to a desired circumferential length, springback occurs even if the ear portion is somewhat larger. Therefore, there is a problem that it is difficult to maintain the binding force. Further, in order to give the ears rigidity sufficient to maintain the binding force, it is desirable to increase the thickness and width of the ears as much as possible. In that case,
When viewed as a whole band, the thickness and width of the portion other than the ear portions become excessive, which causes an increase in weight and cost and makes processing difficult. In addition, when the rigidity of the ears is increased, the force (assembly load) required for plastically deforming the ears is increased, which causes deterioration of the assembling workability. Therefore, an object of the present invention is to provide a boot band which does not loosen the binding force after assembling and has good assembling workability.

[0005]

According to the present invention, there is provided a belt-shaped metal band body having a first end and a second end. A boot band provided on the member to be tightened in a state in which the first end is rolled into a ring shape so that the first end overlaps the outside, wherein a portion of the outer overlapping portion of the band body near the first end is an inner overlapping portion. A peel prevention fixing portion for preventing separation, a locking portion located near the first end of an inner peripheral edge of a hole or a recess provided in an outer overlapping portion of the band body, and a second end of the inner overlapping portion. A protruding wall that protrudes in the thickness direction of the band body at a position closer to the band body, the vertical wall engaging the locking portion from the thickness direction of the band body when the band body is tightened to a predetermined circumferential length. Part and the outer overlap Have and a possible plastic deformation of the plastic deformation to a shape reducing the circumferential length of the provided and the band body between the peeling preventing fixing portion and the locking portion of the.

In the boot band of the present invention having such a configuration, when the plastic deformation portion is deformed by the jig, the winding diameter of the band body, that is, the circumferential length is reduced. When the band body reaches a predetermined circumferential length, the vertical wall of the protrusion moves in the thickness direction (substantially perpendicular direction) of the band body with respect to the locking portion and engages with the locking portion, thereby binding the band. The force is supported by the vertical wall and the locking portion.

Here, the outer overlapping portion and the inner overlapping portion are
Movement (peeling) in the thickness direction is prevented by the peel prevention fixing portion, so that the locking portion is prevented from moving in the direction (plate thickness direction) coming off the vertical wall. Since the vertical wall rises substantially perpendicularly from the surface of the band body, the band body does not move in the loosening direction after assembly.

As an example of the peeling prevention fixing portion, as described in claim 2, a fixing portion formed by welding or caulking for fixing the inner overlapping portion and the outer overlapping portion so as to be inseparable from each other is employed.

According to a third aspect of the present invention, one example of the convex portion is formed by forming the vertical wall at a plurality of portions in a longitudinal direction of the band body in a saw-tooth shape in cross section, and one example of the locking portion is formed of the band body. A shape having a sawtooth cross-section in which any of the plurality of vertical walls is engaged when tightened to a desired circumference.

According to a fourth aspect of the present invention, the convex portion is formed by pressing a part of the band body in a thickness direction by pressing. The projection has the vertical wall which rises substantially perpendicularly to the thickness direction of the band body, an upper wall connected to the vertical wall, and a side wall integrally connected to the main body of the band from both sides of the upper wall. Thereby, a large rigidity can be exerted against a load applied in the longitudinal direction and the thickness direction of the band body.

According to a fifth aspect of the present invention, the plastic deformation portion includes a corrugated portion formed on a part of the band body, and the corrugated portion is compressed in the longitudinal direction of the band body to be plastically deformed. Alternatively, the protruding height of the plastic deformation portion may be reduced.

As described in claim 6, a stopper wall against which the second end abuts when the band body is tightened to a desired peripheral length may be provided at a longitudinally intermediate portion of the band body. With this configuration, when the second end of the band body abuts against the stopper wall, the vertical wall of the projection comes into engagement with the locking portion, so that an excessive tightening force is applied to the band body during assembly. Is avoided.

[0013] As described in claim 7, an upright wall facing the second end is provided near the vertical wall of the projection,
The outer overlapping portion may be provided with a stopper wall against which the rising wall abuts when the band body is tightened to a desired peripheral length. With this configuration, when the rising wall abuts against the stopper wall, the vertical wall of the projection is engaged with the locking portion.

As described in claim 8, the present invention provides
It also includes providing a guide groove for guiding the movement of the band body in a part of the band body. Such a configuration enables the vertical wall of the projection to be more reliably engaged with the locking portion.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a boot band according to the present invention will be described below with reference to FIGS.
The boot band 10 shown in FIG. 1 has a band body 11 formed of a band-like member made of metal (for example, stainless steel). Both ends in the longitudinal direction of the band body 11 are an open first end 13 and a second end 14. The band body 11 is wound around the tightened member 17 in a ring shape such that the first end 13 is located outside. An example of the tightened member 17 is a rubber boot provided on a cylindrical connection partner member 18 of a power transmission system of an automobile.

The band body 11 rounded in a ring shape has an outer overlapping portion 21 located on the first end 13 side and a second end 14.
Inner overlapping portions 22 located on the sides, and these overlapping portions 2
And a longitudinal intermediate portion 23 (a non-overlapping portion) located between 1 and 22. The band body 11 is preferably formed in a ring shape to some extent in advance.

The longitudinal intermediate portion 23 of the band body 11
In addition, a plastically deforming portion 30 protruding like an ear is provided.
The plastic deformation portion 30 includes a pair of front and rear legs 31 and 32 that stand on the outer peripheral side of the band body 11, and these leg portions 31 and 32.
And a main portion 33 extending between 32. The main portion 33 is formed into a shape that can tighten the band body 11 when plastically deformed. In this embodiment, reinforcing ribs 34 are formed by bending both side edges of the main portion 33 in order to increase the rigidity of the plastic deformation portion 30.

At a portion near the first end 13 of the outer overlapping portion 21 of the band body 11, locking holes 40 are provided at a plurality of positions (three in the illustrated example) in the longitudinal direction of the band body 11. The locking hole 40 penetrates the band body 11 in the thickness direction. A plurality of (three in the illustrated example) locking projections 41 are formed in the inner overlapping portion 22 at positions corresponding to the respective locking holes 40. Each locking projection 41 projects toward the outer overlapping portion 21 and can be inserted into the corresponding locking hole 40.

The front wall 41a of the locking projection 41 has a first end 1
3 has an obliquely overhanging shape so as to protrude toward the front end 3, and further has a tip 4 extending in the direction of the first end 13.
1b. Therefore, the locking projection 41 can prevent the outer overlapping portion 21 from separating from the inner overlapping portion 22 when the front wall 41a is engaged with the front edge portion 40a of the locking hole 40. That is, the locking hole 40 and the locking projection 41
Functions as a peel prevention fixing portion for preventing the outer overlapping portion 21 from separating from the inner overlapping portion 22.

A receiving hole 50 penetrating in the thickness direction is formed in the outer overlapping portion 21 of the band body 11 on the opposite side of the locking hole 40 with the plastic deformation portion 30 interposed therebetween.
A portion of the inner peripheral edge of the receiving hole 50 near the first end 13 forms a locking portion 51 that extends substantially linearly in the width direction of the band body 11, as shown in FIG. The plastic deformation part 30 is located between the locking hole 40 and the receiving hole 50 which constitute the peeling prevention fixing part.

A convex portion 56 having a vertical wall 55 projecting in the thickness direction of the band body 11 is provided at a portion of the inner overlapping portion 22 near the second end 14. The convex portion 56 is provided at a position where the vertical wall 55 engages with the locking portion 51 from the thickness direction of the band body 11 when the band body 11 is tightened to a desired circumferential length. That is, the “predetermined peripheral length” referred to in this specification means a length that the vertical wall 55 can engage with the locking portion 51.

As shown in FIG. 3, the vertical wall 55 extends substantially linearly in the width direction of the band body 11. As shown in FIGS. 3 and 4, the convex portion 56 is formed by pressing a part of the inner overlapping portion 22 in the sheet thickness direction by press working, and is substantially perpendicular to the outer overlapping portion 21 in the sheet thickness direction. The vertical wall 55 that rises, an upper wall 57 that extends from the vertical wall 55 in the direction of the second end 14, and a side wall that is integrally connected to both sides of the upper wall 57 and the band body portion (unpressed portion) 11a. And a portion 58.

The box-shaped projection 56 having the vertical wall 55 and the side wall 58 has sufficient strength against the binding force applied in the longitudinal direction of the band body 11. In addition, it has sufficient strength (rigidity) against a compressive load applied in the thickness direction at the time of tightening.

A region extending from the vicinity of the convex portion 56 to the second end 14 is a tapered portion 60 whose plate thickness decreases toward the second end 14. By providing such a tapered portion 60, the inner peripheral surface 2 of the longitudinal intermediate portion 23 of the band body 11 is formed.
It is possible to avoid the occurrence of a step between the 3a and the second end 14 that poses a practical problem, and it is possible to further improve the sealing performance of the boot band 10 with respect to the member 17 to be tightened.

Next, the operation of the boot band 10, such as an assembling procedure, will be described. As shown in FIG. 1, the member 17 to be fastened is placed on the connection partner member 18, and the boot band 10, which has been rounded to some extent in advance, is wound around the member 17. Then, the locking projection 41 is inserted into the locking hole 40.

The boot band 10 includes a band body 1
Due to the elastic restoring force of 1, the winding diameter tends to widen. For this reason, the front wall 41 a of the locking projection 41 is hooked on the front edge 40 a of the locking hole 40, and the band body 11
Is prevented from further expanding. Thus, the boot band 10 can be maintained in a state temporarily fixed to the tightened member 17 as shown in FIG.

The legs 31, 32 of the plastic deformation portion 30 are plastically deformed by a jig (not shown) (for example, a pliers-like tool or an automatic caulking machine) as shown in FIG. By doing so, the winding diameter, that is, the circumference, of the band body 11 is reduced, and the outer overlapping portion 21 moves relative to the inner overlapping portion 22 in the direction indicated by the arrow A in FIG. At the moment when the band body 11 reaches the predetermined circumferential length, the convex portion 56 enters the receiving hole 50, and the vertical wall 55 of the convex portion 56 moves in the thickness direction with respect to the locking portion 51 of the receiving hole 50. By doing so, the locking portion 51 and the vertical wall 55 engage with each other to complete the assembly.

Since the vertical wall 55 of the projection 56 extends substantially perpendicularly from the surface of the band body 11, the band body 11 does not move in the loosening direction after assembly. Therefore, the vertical wall 55 can be engaged with the locking portion 51 with a minimum necessary tightening stroke, and the binding force of the band body 11 can be prevented from being loosened after assembly.

Since the boot band 10 receives the binding force after assembly by the locking portion 51 and the vertical wall 55, no binding force acts on the plastic deformation portion 30. That is, the plastically deforming portion 30 may have such a rigidity that the outer overlapping portion 21 is pressed against the inner overlapping portion 22 so that the locking portion 51 and the vertical wall 55 do not move in the thickness direction. Therefore, the thickness and width of the plastically deformable portion 30 can be smaller than those in which the plastically deformable portion (ear portion) itself receives a binding force as in the related art. For this reason, it is possible to prevent the plate thickness and the plate width of portions other than the plastically deformed portion 30 from being excessively excessive, and to contribute to the reduction of the weight and the cost of the boot band 10.

The present invention is not limited to the above embodiment, but can be implemented in various forms as described below. In any of the embodiments described below, portions common to the above-described embodiments are denoted by the same reference numerals as those in the above-described embodiments, and description thereof is omitted.

In the embodiment shown in FIGS. 5 and 6, a part of the inner overlapping portion 22 of the band body 11 is punched out by a press to form a circular dowel-shaped convex portion 56 and the outer overlapping portion 21 is formed. A concave portion 70 into which the convex portion 56 can just enter. The convex portion 56 has a vertical vertical wall 55 protruding in the thickness direction of the band body 11, and the concave portion 70 has a vertical wall 55 at a position near the first end of the inner peripheral edge thereof.
Has a locking portion 51 that can be engaged. In this case, when the outer overlapping portion 21 is tightened in the direction of arrow A and the band body 11 reaches a predetermined circumferential length, the convex portion 56 is fitted into the concave portion 70 and the vertical wall 55 and the locking portion 51 are connected. Engage.

The protrusion 56 of the embodiment shown in FIGS.
The inner overlapping portion 2 is formed so that the vertical wall 55 is integrally connected to the band body portion (the portion that is not pressed) 11a.
Part 2 is stamped out by a press. The protrusion 56 thus formed has a greater strength (rigidity) against a compressive load applied in the thickness direction of the band body 11. By punching out a part of the outer overlapping portion 21 by pressing, a concave portion 70 having a shape and a size into which the convex portion 56 can just enter is formed. Also in this embodiment, the outer overlapping portion 21 is tightened in the direction of arrow A, and when the band body 11 reaches a predetermined circumferential length, the convex portion 56 enters the concave portion 70 and the vertical wall 55 of the convex portion 56 Engages with the locking portion 51.

The embodiment shown in FIGS. 9 and 10 has a convex portion 80 having a sawtooth-shaped vertical wall 55 on the outer peripheral surface side of the inner overlapping portion 22, and a cross section on the inner peripheral surface side of the outer overlapping portion 21. A concave portion 81 having a serrated locking portion 51 is provided. In the case of this embodiment, when the band body 11 is tightened to a desired peripheral length, the serrated convex portion 80 and the concave portion 81 can be engaged at a desired position in the longitudinal direction of the band body 11.

In the embodiment shown in FIG. 11, a projection 85 to be caulked is employed as a peeling prevention fixing portion.
The projection 85 is provided on the inner overlapping portion 22, and the outer overlapping portion 21 is formed with a hole 86 into which the projection 85 is inserted. After the projection 85 is inserted into the hole 86, the tip of the projection 85 is swaged to form the outer overlapping portion 2.
1 and the inner overlapping portion 22 are fixed. The protrusion 85
Instead of using the holes 86, the outer overlapping portion 21 and the inner overlapping portion 22 may be fixed inseparably by welding means such as spot welding.

The embodiment shown in FIG.
1 between the outer overlapping portion 21 and the longitudinal middle portion 23,
A step 90 corresponding to the plate thickness T of the band body 11 is provided,
The second end 14 enters the inside of the step 90. With the boot band 10 having such a step 90, there is no step which causes a practical problem between the inner peripheral surface 14a near the second end 14 and the inner peripheral surface 23a of the longitudinal middle portion 23. Therefore, the sealing property is improved.

The plastically deformed portion 30 has an M-shaped waveform portion 95a as shown in FIG. 13A, an inverted U-shaped waveform portion 95b as shown in FIG. 13B, or FIG. As shown, a waveform portion 95c in which a plurality of peaks and valleys are alternately provided in the longitudinal direction of the band body 11 may be used. These waveform portions 9
5a to 95c are compressed in the longitudinal direction of the band body 11 and crushed into a shape shown by a two-dot chain line, thereby tightening the band body 11 to a predetermined circumferential length.

As shown in FIG. 14A, a pair of pins 1
The band body 11 may be tightened to a predetermined circumferential length by deforming the plastic deformation portion 30 with a jig 103 having the reference numerals 01 and 102 as shown in FIG.

The plastic deformation portion 30 shown in FIG.
1, 32 and the main part 33 are formed with reinforcing ribs 110, and arrows P
By applying the crushing load shown in FIG.
Are deformed in a direction approaching each other as shown by an arrow P2, and the band body 11 is tightened to a predetermined circumferential length.

In the embodiment shown in FIGS. 16 and 17, a guide groove 120 for guiding the movement of the projection 56 when tightening the band body 11 is provided. This guide groove 120
Is formed along the longitudinal direction of the band body 11 so that the convex portion 56 can move substantially straight in the longitudinal direction of the band body 11 toward the locking portion 51. Before the band body 11 is assembled, the convex portion 56 enters the guide groove 120. According to such a configuration,
When the band body 11 is tightened, the vertical wall 55
Can be more reliably engaged with the locking portion 51.

In the embodiment shown in FIGS. 18 and 19, a part of the band body 11 is punched out by a press, so that the concave portion 70 having the locking portion 51 and the processed portion 130 having the guide groove 120 are formed. . Also in this case, when the band body 11 is tightened, the convex portions 56
Since the longitudinal wall 55 is guided along the longitudinal direction of the band body 11 along the longitudinal direction 20, the vertical wall 55 can be securely engaged with the locking portion 51.

The embodiment shown in FIG.
A stopper wall 140 against which the second end 14 abuts when the band body 11 is tightened to a predetermined circumferential length is provided at the intermediate portion 23 in the longitudinal direction.

With the boot band 10 having such a stopper wall 140, when the band body 11 is tightened to a desired peripheral length, the second end 14 becomes the stopper wall 140.
And the vertical wall 55 of the projection 56 is
0 engaging part 51. Therefore, the band body 1
1 can be easily tightened to a predetermined circumference, and an excessive assembling force is not required. Moreover, by making the height difference T of the stopper wall 140 equal to the plate thickness of the band body 11,
Since there is no step between the inner peripheral surface 14a of the second end 14 and the inner peripheral surface 23a of the longitudinal middle portion 23, which causes a practical problem, the sealing performance is improved.

In the embodiment shown in FIG. 21, a part of the outer overlapping portion 21 is punched out by a press to form the concave portion 70 having the locking portion 51. Other configurations, operations, and effects are the same as those of the embodiment shown in FIG. 20, and thus, portions common to both are denoted by common reference numerals, and description thereof is omitted.

In the embodiment shown in FIGS. 22 to 25, a stopper wall 140 is provided on the second end 14 side of the inner peripheral edge of the receiving hole 50. In the vicinity of the vertical wall 55 of the projection 56, a rising wall 150 facing the second end 14 is provided. The receiving hole 50 functioning as a guide groove extends along the longitudinal direction of the band body 11, and the rising wall 150 enters the receiving hole 50 before assembly. As shown in FIG.
The distance L1 between the upper wall 150 and the rising wall 150 is slightly shorter than the distance L2 from the locking portion 51 to the stopper wall 140.

In this embodiment (FIGS. 22 to 25), when the band body 11 is tightened to a predetermined circumferential length, the rising wall 150 moves in the direction of the stopper wall 140 along the receiving hole 50 functioning as a guide groove. I do. When the band body 11 reaches the predetermined circumference, the vertical wall 55 also enters the receiving hole 50 as shown in FIG. 25, the rising wall 150 abuts against the stopper wall 140, and the vertical wall 55 Engage. For this reason, it becomes easy to tighten the band body 11 to a predetermined circumferential length, and it is not necessary to apply an excessive assembling force to the boot band 10. Moreover, when the band body 11 is tightened, the vertical wall 55 can be moved almost straight toward the locking portion 51, so that the vertical wall 55
Can be reliably engaged with the locking portion 51.

The embodiment shown in FIGS. 26 to 29 is an example in which a concave portion 160 is used instead of the receiving hole 50 shown in the above embodiment (FIGS. 22 to 25). FIG. 26 shows a state before assembly, and FIG. 29 shows a state after assembly. The recess 160 is formed by stamping out a part of the outer overlapping portion 21 by pressing. The other configuration and operation and effect are the same as those of the above-described embodiment (FIGS. 22 to 25), and thus common portions are denoted by common reference numerals and description thereof is omitted.

[0047]

According to the first aspect of the present invention, the band body does not move in the loosening direction after the vertical wall is engaged with the locking portion. For this reason, the binding force given to the band body at the time of assembling is maintained even after assembling, and an excessive assembling force is not required. In this boot band, the binding force of the band body after assembly is received by the vertical wall of the projection and the locking portion, so that the binding force does not act on the plastically deformed portion after assembly. Therefore, the plastically deformed portion only needs to have rigidity enough to press the outer overlapping portion so that the vertical wall and the locking portion do not move in the plate thickness direction. ) The thickness and width of the plastically deformed portion can be smaller than that of the plastically deformed portion itself. For this reason, it is possible to avoid excessive thickness and width of the portion other than the plastically deformed portion, which can contribute to reduction in weight and cost of the boot band.

According to the second aspect of the present invention, the portion near the first end of the band body can be reliably prevented from being separated from the inner overlapping portion by the separation preventing fixing portion by caulking or the like. Engagement with the locking portion is also reliably maintained. According to the third aspect of the present invention, the vertical wall having the sawtooth cross section and the engaging portion come into engagement with each other at the position where the band body is tightened to a desired peripheral length, so that the assembling workability is good. is there.

According to the fourth aspect of the present invention, since the binding force is received by the vertical wall of the high-rigidity convex portion and the locking portion, the convex portion is strongly pressed by the outer overlapping portion when tightening the band body. Even if it is done, problems such as deformation of the convex portion can be avoided. According to the fifth aspect of the present invention, since the corrugated portion is crushed in the longitudinal direction of the band body, it is possible to keep the protruding height after plastic deformation low.

According to the sixth aspect of the present invention, the stroke until the band body is tightened to the predetermined circumferential length can be managed according to the position of the stopper wall, so that the band body is not excessively tightened. The stroke can be easily controlled during tightening. In addition, since the second end abuts against the stopper wall, the configuration of the band body is not complicated.

According to the seventh aspect of the invention, when the band body is tightened to a predetermined circumferential length, the rising wall abuts against the stopper wall and the vertical wall engages with the locking portion. For this reason, the stroke until the band body is tightened to the predetermined circumferential length can be managed according to the position of the stopper wall or the rising wall, and the band body can be prevented from being excessively tightened. Since the rising wall is formed at a position different from the second end, even if the rising wall is provided, the shape and position of the second end are not restricted.

According to the eighth aspect of the present invention, when the band body is tightened to a predetermined circumferential length, the vertical wall can be moved almost straight toward the locking portion, so that the vertical wall is locked. It can be reliably engaged with the portion.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a state before assembly of a boot band according to an embodiment of the present invention.

FIG. 2 is a sectional view after the boot band shown in FIG. 1 is assembled.

FIG. 3 is a plan view of a part of the boot band shown in FIG. 1;

FIG. 4 is a sectional view taken along the line iv-iv in FIG. 3;

FIG. 5 is a plan view of a part of a boot band showing a modification of a convex portion.

FIG. 6 is a sectional view taken along the line vi-vi in FIG. 5;

FIG. 7 is a plan view of a part of a boot band showing another modification of the projection.

FIG. 8 is a sectional view taken along the line viii-viii in FIG. 7;

FIG. 9 is a plan view of a part of a boot band showing still another modified example of the projection.

FIG. 10 is a sectional view taken along line XX in FIG. 9;

FIG. 11 is a sectional view showing another embodiment of a boot band.

FIG. 12 is a sectional view showing still another embodiment of the boot band.

FIG. 13 is a front view of a part of the boot band showing a modification of the plastic deformation portion.

FIG. 14 is a front view of a part of a boot band and a jig showing another modification of the plastic deformation portion.

FIG. 15 is a front view of a part of a boot band showing still another modified example of the plastic deformation portion.

FIG. 16 is a plan view of a part of a boot band having a guide groove.

FIG. 17 is a sectional view taken along the line F17-F17 in FIG. 16;

FIG. 18 is a plan view showing a modification of the boot band having a guide groove.

FIG. 19 is a sectional view taken along the line F19-F19 in FIG. 18;

FIG. 20 is a sectional view of a boot band showing an embodiment having a stopper wall.

FIG. 21 is a sectional view showing a modified example of a boot band having a stopper wall.

FIG. 22 is a sectional view showing still another modification of the boot band having the stopper wall.

FIG. 23 is a plan view of a part of the boot band shown in FIG. 22;

24 is a sectional view taken along the line F24-F24 in FIG.

FIG. 25 is a sectional view showing an assembled state of the boot band shown in FIG. 22;

FIG. 26 is a sectional view showing still another modification of the boot band having the stopper wall.

FIG. 27 is a plan view of a part of the boot band shown in FIG. 26;

28 is a sectional view taken along line F28-F28 in FIG.

FIG. 29 is a sectional view showing an assembled state of the boot band shown in FIG. 26;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Boot band 11 ... Band body 13 ... First end 14 ... Second end 17 ... Tightened member 21 ... Outside overlapping part 22 ... Inner overlapping part 30 ... Plastic deformation part 40 ... Locking hole (peeling prevention fixing part) 41: locking projection (peeling prevention fixing part) 51: locking part 55: vertical wall 56: convex part 70: concave part 85: projection (peeling prevention fixing part) 120: guide groove 140: stopper wall

Claims (8)

[Claims] 1. A band-shaped metal band body having a first end and a second end, and the band body is provided on a member to be fastened in a ring shape such that the first end overlaps the outside. A boot band, wherein a peel prevention fixing portion for preventing a portion of the outer overlapping portion of the band body near the first end from separating from the inner overlapping portion, and a hole or a recess provided in the outer overlapping portion of the band body And a vertical wall protruding in the thickness direction of the band body at a portion of the inner overlapping portion near the second end, the band body having a predetermined circumference. The vertical wall is provided between the protrusion that engages with the locking portion from the thickness direction of the band body when tightened to a length, and the separation preventing fixing portion and the locking portion of the outer overlapping portion. And the circumference of the band body A plastic band, comprising: a plastically deformable portion capable of being plastically deformed into a contracted shape. 2. The boot band according to claim 1, wherein the peel preventing fixing portion is a fixing portion formed by welding or caulking for fixing the inner overlapping portion and the outer overlapping portion so as to be inseparable from each other. . 3. The projection has a vertical wall formed at a plurality of locations in the longitudinal direction of the band body in a saw-tooth cross-section, and the locking portion is provided when the band body is tightened to a desired circumference. 2. A boot band according to claim 1, wherein said boot band has a saw-toothed cross section with which one of said vertical walls engages. 4. The projection is formed by pressing a part of a band body in a plate thickness direction by a press, and the projection is
The vertical wall rises substantially perpendicularly to the thickness direction of the band body, an upper wall connected to the vertical wall, and a side wall integrally connected to the main body of the band from both sides of the upper wall. The boot band according to any one of claims 1 to 3. 5. The plastic deformation part includes a corrugated part formed on a part of the band body, and the corrugated part is plastically deformed by being compressed in a longitudinal direction of the band body. The boot band according to any one of the above. 6. The band body according to claim 1, wherein a stopper wall against which said second end abuts when said band body is tightened to a desired circumferential length is provided at a longitudinally intermediate portion of said band body. A boot band according to any one of the preceding claims. 7. A rising wall facing the second end is provided in the vicinity of a vertical wall of the convex portion, and the rising wall is formed in an outer overlapping portion when the band body is tightened to a desired circumferential length. The boot band according to any one of claims 1 to 5, further comprising a stopper wall against which the boot band abuts. 8. A part of the band body is provided with a guide groove for guiding the convex portion to move in the longitudinal direction of the band body when tightening the band body to a predetermined circumferential length. The boot band according to any one of claims 1 to 7, wherein