JPH1082490A - Double spiral type clamp fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a double spiral type clamp fitting flat on the whole and uniformly brought into close contact with even a nonresilient member to be fixed, with high roundness. SOLUTION: In a place where an inner overlap part 11a and an outer overlap part 11b of a clamping band 11 are triple-overlapped by the fixed quantity X through an intermediate overlap part 11c, it is so set that a first fixed pawl 18 facing inward from the outer overlap part 11b, and a second fixed pawl 22 facing outward from the intermediate overlap part 11c are locked biting each other. In a double overlap place excluding the fixed quantity X, a plurality of separating leg pieces 23 facing inward from an external contact band X1 are brought into resilient contact with a corresponding internal contact band X2 so as to make the clamping band itself accumulate diametrical expansive spring force.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid feeding hose made of a plastic such as rubber or synthetic resin, a dust-proof bellows, a boot for a shaft coupling, and other fixed objects, which are connected to the circumference of connection of various devices. The present invention relates to a double spiral clamp for semi-permanently fixing to a surface.

[0002]

2. Description of the Related Art The present inventor has previously proposed Japanese Utility Model Publication No. 7-50631 as this type of double spiral clamp.

[0003] According to this, a clamp band (11) made of a metal strip material having a fixed length is connected to an inner overlapped portion (11a) at the one end side of the bend and an outer overlapped portion at the other end side of the bend. (11b) is bent and solidified into an overall double circular spiral state that overlaps three times by a certain amount (L) via the intermediate polymerization portion, and the partial constant amount (L) When compared with a clamp that is wound into a circular ring shape that overlaps only twice and remains three-dimensional, the clamp band (1) is pulled under a small drawing force (tightening torque) of about half.
The diameter (D) of 1) can be contracted and deformed lightly,
In addition, it can be said that there is an advantage that it can be uniformly adhered to the circumferential surface of the fixed object (10) under the highest possible roundness.

[0004]

However, as a result of intensive studies, the elastic bump (23) for accumulating the expansion and contraction spring force in the clamp band (11) itself has been used in the configuration of the above-mentioned invention. Since the outer overlapping portion (11b) of the band (11) is bent and bent outwardly, the band (11) is apt to be broken due to stress concentrated thereon, and may interfere with peripheral members. Since the weight distribution along the circumferential direction of the clamp band (11) is also offset, particularly when used in a device such as a vehicle that receives rotational force, vibration, or impact, the offset of the tightening force, displacement, or dropout may occur. Not without.

[0005] That said, the elastic bump (23)
If the installation of the clamp is omitted, the clamp band (11) itself does not exhibit the expansion and contraction spring force, so that the fixed object (10) may be a product made of a highly elastic rubber material,
In the case of a molded article made of a hard synthetic resin material having no inherent elasticity, the object to be fixed (10) is fully adhered to the connection circumferential surface (24) of various devices, and is stable and stable. It cannot be firmly tightened, and when it is used in a device such as a vehicle that is subjected to rotational force, vibration, or impact, there is a concern that the position may shift or fall off.

As a countermeasure, it is necessary to manufacture the diameter (D) of the clamp band (11) to a high-precision dimension that exactly matches the thickness of the fixed object (10). It is necessary to prepare a large number of varieties corresponding to changes in thickness, and the mass production effect cannot be exhibited.

In the configuration of the above-mentioned known invention, the second receiving port (15) of the operating tool (B) and the second convex channel wall (16) for receiving the operating tool that protrudes outward from the opening edge thereof are provided. The metal strip material (M) forming the outer overlapped portion (11b) of the clamp band (11) is provided at the cut end of the metal strip material (M), and at a position more deviated in the direction in which the elastic bump (23) exists than the cut end Since the first locking claw (18) and the second locking claw (21) are engaged with each other by biting, the above-mentioned clamp band (11) is used during the use of the clamp band (11). There is a possibility that the metal strip material (M) may be outwardly warped from the cut-off end of the metal strip material (M).
(21) is more susceptible to dissociation force.

[0008]

SUMMARY OF THE INVENTION The present invention contemplates a further improvement of the above-described object. For this purpose, a clamp band composed of a metal strip material cut to a fixed length is rolled and bent. The overall overlap, in which the inner overlapped portion on one end side and the outer overlapped portion on the other end side are overlapped by a certain amount and tripled through the intermediate overlapped portion.
For a fluid feeding hose, dust-proof bellows, and shaft coupling made of plastics such as rubber and synthetic resin by winding and bending into a heavy circular spiral state and forcibly deforming the diameter of the clamp band by force. In a double spiral type clamp fitting used to fix boots and other objects to be fixed to the connection circumferential surface of various devices,

First, only one cut-off end of the inner overlapping portion is cut out as a pilot nose having a fixed width smaller than the fixed width of the metal strip material itself, and a first tool receiving hole is also opened in the inner overlapping portion. Forming the first
The first tool engaging claw is bent outward from the opening edge of the tool receiving hole on the side adjacent to the pilot nose,

In the outer overlapping portion, a first fixed claw receiving hole and a second tool receiving hole are sequentially distributed in parallel from the other end side of the cutout, and the other end of the first fixed claw receiving hole is separated. The first fixing claw is bent in an inwardly depressed state from the side opening edge, and the second tool locking claw is raised outward from the opening edge of the second tool receiving hole adjacent to the first fixing claw receiving hole. Bend to a state,

The intermediate overlapping portion has a nose receiving hole for allowing the pilot nose of the inner overlapping portion to escape, and a communication hole for allowing the second tool engaging claw of the inner overlapping portion to escape, and the openings are distributed in parallel. The second fixing claw is bent outward from the opening edge on the side of the communication hole adjacent to the nose receiving hole so as to protrude outward.

The working claw of the drawing-type operating tool is engaged with both the first tool engaging claw of the inner overlapping portion and the second tool engaging claw of the outer overlapping portion, and the pair of operating claws is provided. When the diameter of the clamp band is forcibly contracted and deformed by performing a drawing operation on the
The fixed claw and the second fixed claw of the intermediate polymerization portion are set so as to bite and lock with each other, and

[0013] From the circumscribed zone from the tool escape communication hole of the intermediate overlap portion to the second tool receiving hole of the outer overlap portion, a plurality of floating leg pieces distributed in a dotted manner are bent inward. Cutting and raising each of the floating leg pieces from the nose receiving hole of the intermediate overlapping portion, which double overlaps with the circumscribed zone, to the inscribed zone from the nose receiving hole of the intermediate overlapping portion to the first tool receiving hole of the inner overlapping portion. By elastically contacting the distal end, a diametrical expansion and contraction spring force is accumulated in the clamp band itself,

Secondly, similarly, only one of the cut ends of the inner overlapped portion is cut out as a pilot nose having a fixed width smaller than the fixed width of the metal strip material itself, and a first tool receiving hole is similarly formed in the inner overlapped portion. An opening is formed, and the first tool locking claw is bent outwardly from an opening edge of the first tool receiving hole adjacent to the pilot nose,

In the outer overlapping portion, a first fixed claw receiving hole and a second tool receiving hole are sequentially distributed in an open state in parallel from the other end of the cut, and the other end of the cut at the first fixed claw receiving hole. The first fixing claw is bent in an inwardly depressed state from the side opening edge, and the second tool locking claw is raised outward from the opening edge of the second tool receiving hole adjacent to the first fixing claw receiving hole. Bend to a state,

The intermediate overlapping portion has a nose receiving hole of the inner overlapping portion for allowing the pilot nose to escape, and a communication hole for allowing the second tool engaging claw of the inner overlapping portion to escape as well. The second fixing claw is bent outward from the opening edge on the side of the communication hole adjacent to the nose receiving hole so as to protrude outward.

The working claws of the drawing-type operating tool are respectively engaged with both the first tool engaging claw of the inner overlapping portion and the second tool engaging claw of the outer overlapping portion, and the pair of operating claws is provided. When the diameter of the clamp band is forcibly contracted and deformed by performing a drawing operation on the
The fixed claw and the second fixed claw of the intermediate polymerization portion are set so as to bite and lock with each other, and

From the inscribed zone from the nose receiving hole of the intermediate overlapping portion to the first tool receiving hole of the inner overlapping portion, a plurality of floating leg pieces distributed in a dotted manner are cut and raised in an outwardly bent state. Then, each of the floating leg pieces is cut into a circumscribed zone from the tool escape communication hole of the intermediate overlap portion, which double overlaps with the inscribed zone, to the second tool receiving hole of the outer overlap portion. It is characterized in that diametrical expansion and contraction spring force is accumulated in the clamp band itself by elastically contacting the raised tip.

[0019]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a clamp according to a first embodiment of the present invention; FIG. FIGS. 3 to 9 also show a product which is wound and bent three-dimensionally and its use state. As a material of the clamp, a fixed thickness (T) (for example, about 0.5 to 1.0 mm) and a fixed width (W) are used. ) (Eg, about 7-10 mm) (eg, SUS301, 304, 316 or 430)
And other metal strips (M) are used, and from the previously long objects, the fixed objects (10) such as the fluid supply hoses, dust-proof bellows, and boots for shaft couplings, which are the target, are provided. The fixed length (L) according to the length is cut into an appropriate fixed size.

(11) The above-mentioned metal strip material (M) cut into a fixed size is double-wound and bent to form a circular ring shape in a front view, thereby forming an object ( A clamp band which directly serves the tightening action of 10), and is partially overlapped by a certain amount (X) so that the other end of the winding band is indirectly circumscribed with one end of the winding bending. It is kept in condition.

That is, in the clamp band (11), one end of the winding and bending is used as an inner overlapping portion (11a), and the other end of the bending and bending is used as an outer overlapping portion (11b). However, it is bent and three-dimensionally wound into an overall double circular spiral state that overlaps only three times.

(11c) is the above-mentioned inner polymerized portion (11a) at the triple overlap portion of a certain amount (X).
The intermediate polymerized portion (11c) interposed between the outermost portion and the outer polymerized portion (11b) is shown. The intermediate polymerized portion (11c) is formed from the above-mentioned fixed overlap (X) triple overlap portion by the clamp band (11). By continuously moving to one end of the winding and bending, 2 inscribed in the outer superposed portion (11b)
A double overlap state occurs, and the transition from the triple overlap portion to the opposite winding and bending other end side of the clamp band (11) continues, so that the above-mentioned inner overlap portion (1) is formed.
A double overlap state circumscribing 1a) results.

Needless to say, the clamp band (11) has a fixed width (W) of the metal band material (M) itself, but only one end of the inner overlapped portion (11a) is cut off. Due to the notches in both side edges in M), the metal strip material (M) is formed as a pilot nose (12) having a narrow constant width (W1) which is less than about one third of the constant width (W). I have. The overhang length (L1) of the nose (12) is, for example, about 7 to 10 m.
m.

(13) The pilot nose (12)
And a locking pin receiving hole for winding and bending forming which is opened as a substantially circular or elliptical shape in plan view on the inner overlapping portion (11a) of the clamp band (11) while being located near the overhanging base end of the clamp band (11). Receiving a locking pin to be planted from a circumferential surface of a core metal roll for winding and bending in a forming machine (not shown), and rotating the core metal roll in a locking state with the locking pin. This is used for winding and bending the clamp band (11) into a circular spiral state.

(14) is the same as that of the inner polymerized portion (11).
a) from one end of the cut-off pin receiving hole (1)
3) a first tool receiving hole which is opened at a position further distant than that of the first embodiment, and has a substantially square or elliptical shape in plan view; The first tool engaging pawl (15) is bent outwardly by a height substantially corresponding to the constant thickness (T) of the metal strip material (M) itself. The first tool engaging claw (15) protruding outward acts as a reinforcing bead capable of resisting a drawing force (a contraction force of a clamp band) of a drawing-type operating tool described later. is there.

On the other hand, the outer overlapping portion (11b) of the clamp band (11), which is to be circumscribed in a triple overlapping state with the inner overlapping portion (11a), is first fixed in sequence from the other end of the separation. The pawl receiving holes (16) and the second tool receiving holes (17) are openly distributed in parallel.

Although both of them have a substantially square or elliptical shape in plan view, the first fixing claw (18) is provided at the opening edge of the first fixing claw receiving hole (16) at the other end of the separation. ) Is bent in an inwardly depressed state by a depth substantially corresponding to the constant thickness (T) of the metal strip material (M) itself. The opening width of the first and second tool receiving holes (14) and (17) and the first fixing claw receiving hole (16) is about one third of the fixed width (W) of the metal strip material (M). Strongly dimensioned.

Also, from the opening edge of the second tool receiving hole (17) on the side adjacent to the first fixed claw receiving hole (16), the second tool locking claw (19) is also made of a metal strip material ( M) It is bent outwardly by a height substantially corresponding to its own constant thickness (T), which also has the same effect as the first tool engaging claw (15) of the inner overlapped portion (11a). Functions as a reinforcing bead.

Further, (20) shows the clamp band (1).
In (1), an intermediate polymerized portion (11c) existing at a place where the inner polymerized portion (11a) and the outer polymerized portion (11b) overlap three times by a certain amount (X) is applied to the metal strip material (M). A nose receiving hole which is elongated and formed in the longitudinal direction, wherein the inner overlapping portion (11)
By aspirating the pilot nose (12) of (a), the inner peripheral surface (tightening action surface) of the clamp band (11) is maintained in a stepless state. (L2) indicates the opening length of the nose receiving hole (20), which is dimensioned much longer than the overhang length (L1) of the pilot nose (12). Similarly, it goes without saying that the opening width of the nose receiving hole (20) is slightly larger than the aforementioned constant width (W1) of the pilot nose (12).

(21) The nose receiving hole (20)
In the side-by-side state, are communication holes for tool retraction that are also elongated and open to the intermediate overlapping portion (11c), and the first tool receiving holes (14) of the inner overlapping portion (11a).
And the first tool engaging claw (15) is received in the communication hole (21).

Therefore, at the time of the drawing operation of the clamp band (11) by the operation tool described later, the intermediate overlapping portion (11c) and the inner overlapping portion (11a) inscribed in a double overlapping state with the intermediate overlapping portion (11c) are formed. There is no danger of a relative lateral displacement (axial direction). The opening width of the communication hole (21) for inserting a tool is substantially the same as that of the first and second tool receiving holes (14) and (17), the first fixed claw receiving hole (16), and the nose receiving hole (20). The dimensions are the same.

The first fixing claw (18) of the outer overlapped portion (11b) is engaged with the biting member from an opening edge on the side adjacent to the nose receiving hole (20) in the communication hole (21) for tool escape. The second fixing claw (22) that can be stopped is
The metal strip material (M) is bent outward by a height substantially corresponding to the constant thickness (T) of the metal strip material (M) itself.

That is, a second fixing claw (22) bent outwardly from the intermediate polymerization portion (11c),
The first fixed claw (18) bent inwardly and depressed from the outer overlapped portion (11b) circumscribing the outer overlapped portion (11b) has a direction opposite to that of the toes, and the outer overlapped portion (11).
On the overlapping plane where the b) and the intermediate overlapping portion (11c) overlap, the bites are engaged with each other and locked.

At this time, the pilot nose (1) of the inner polymerized portion (11a) inscribed in the intermediate polymerized portion (11c).
2) is not only allowed to escape into the nose receiving hole (20) of the intermediate overlapping portion (11c), but also the second tool locking claw which is also bent outward from the inner overlapping portion (11a). (19) also has an intermediate polymerized portion (11c)
Is received in the communication hole (21) of
In spite of being a heavy spiral clamp, the clamp band (11) can be significantly flattened as a whole, and the inner peripheral surface (clamping operation surface) can be maintained in a highly-circular ring state.

The intermediate overlapping portion (11c) of the clamp band (11) transitions from the triple overlap portion of a fixed amount (X) to both one end of the winding bend and the other end of the winding bend, so that the inner side is continuously formed. As described above, the overlapping portion is maintained in a double overlap state with the polymerized portion (11a) and the outer polymerized portion (11b), but the intermediate polymerized portion (11c) corresponding to the double overlapping portion is maintained. The circumscribed zone (X1) from the communication hole (21) for tool insertion to the second tool receiving hole (17) of the outer overlapping portion (11b) is entirely scattered in the zone (X1). A plurality of floating leg pieces distributed (23)
However, preferably, the metal strip material (M) is cut inward and bent to a depth substantially corresponding to the constant thickness (T) of the metal strip material (M) itself.

The floating leg pieces (23) have the circumscribed zone (X1) cut and raised, and the intermediate overlapping portion (11) inscribed therein in a double overlapping state.
c) through the nose receiving hole (20) to the inner polymerized portion (1).
In order to maintain the inscribed zone (X2) until reaching the first tool receiving hole (14) of 1a) and a constant gap (S), the clamp band (11) is floated from the inscribed zone (X2). This is for accumulating the expansion and contraction spring force along the diameter direction.

In this regard, in the first embodiment shown in FIGS. 1 to 9, a substantially U-shaped cut line (24) in a plan view is scattered at a constant pitch on the longitudinal center line of the metal strip material (M). In this state, the leg piece (23) is lifted inward from the cut line (24) and bent inward, and its tip is moved to the inscribed zone (X2) which overlaps with the above-mentioned circumscribed zone (X1). , Elastic contact.

That is, when the fixed object (10) is a molded article made of a rigid synthetic resin material having no inherent elasticity, for example, a dustproof bellows or a boot for a shaft coupling, it is tightened. By means of the floating legs (23) of the clamping band (11) acting on it, the clamping band (1) is provided.
1) The self-expanding spring force is exerted by itself, and the restoring repulsion force of the elongation deformation along the diametrical direction is used as a firm tightening force by which the clamp band (11) can be completely adhered to the fixed object (10). The purpose is to use it.

More specifically, at a double overlap portion of the clamp band (11) other than a portion where the clamp band (11) overlaps three times by the predetermined amount (X), the clamp band (11) is bent inward from the circumscribed band (X1). The distributed floating legs (23) act as elastic spring elements of the clamp band (11) itself, so that the change in hardness and the change in thickness of the fixed object (10) can be made elastic. In this way, it is possible to absorb or finely adjust the surface of the object to be fixed to the object (10).

If such a purpose can be achieved, as is apparent from the second embodiment shown in FIGS. 17 and 18 corresponding to FIGS. 3 and 8, L facing both edges of the metal strip material (M) in plan view. Even if the U-shaped cut line (24) is provided in a parallel state in which dots are distributed at pitches at regular intervals and the leg pieces (23) are floated inward from the pair of cut lines (24). good.

As shown in the third embodiment in FIG.
Similarly, L-shaped cut lines (24) in plan view are applied to both side edges of the metal strip material (M) in an alternating staggered arrangement at pitches at regular intervals, and the cut lines (24)
Even if the leg piece (23) is lifted inward and bent inward, it can be done.

The lid is closed as shown in FIGS.
Although the embodiment is adopted, the clamp band (11) is fixed in a biting engagement state by the first and second fixing claws (18) and (19) between the outer overlapping portion (11b) and the intermediate overlapping portion (11c). The pilot nose (12), which is one end of the cut-off portion of the inner superposed portion (11a), is freely slidable in the circumferential direction of the clamp band (11), and is similar to the configuration of the first embodiment. This is because a diametrical expansion and contraction spring force can be exerted on the tightening action surface of the clamp band (11).

In particular, according to the configurations of the second and third embodiments, a plurality of the floating leg pieces (23) are scattered at positions eccentric to both side edges of the metal strip material (M). Therefore, one or a plurality of extremely elongated holes (2) extending along the longitudinal center line of the remaining metal strip material (M).
5) can be formed so as not to interfere with the floating leg piece (23), and the hole (25) can be used to reduce the weight of the clamp band (11) itself.

FIGS. 20 to 23 show a fourth embodiment in which a plurality of floating leg pieces (23) are connected to each other.
Similarly to the first embodiment, the metal strip material (M) is cut and raised in an inwardly bent state from the circumscribed zone (X1) as a dotted distribution state at pitches at regular intervals along the longitudinal center line of the metal strip material (M). At the same time, each of the cut-and-raised ends is flattened as a flat seat (26), and is continuously bent substantially in a front view.

An extremely elongated leg piece receiving hole (2) for allowing a plurality of such floating leg pieces (23) to escape.
7) forming one or more openings along the longitudinal center line of the metal strip material (M) into the inscribed zone (X2) which overlaps the above-mentioned circumscribed zone (X1) doubly; As a result, each of the floating leg pieces (23) is seated (2) on the fixed object (10) through the leg piece receiving hole (27).
6) can be elastically contacted to accumulate diametrical expansion and contraction spring force in the clamp band (11) itself.

According to such a configuration of the fourth embodiment,
A plurality of floating leg pieces (23) cut and raised inwardly from the circumscribed zone (X1) of the clamp band (11) overlap the circumscribed zone (X1) doubly. X2) can be inserted into the leg receiving hole (27), so that when the clamp band (11) is drawn down by the operating tool to be described later, the inscribed band (X2) in the double overlapping state is formed. ) And the circumscribed zone (X1) do not relatively displace in the lateral direction (axial direction), and the leg piece receiving hole (2
By forming the opening 7), the clamp band (11) of the double spiral clamp can be reduced in weight rationally.

Further, since the cut-and-raised tip of the floating leg piece (23) is bent as a flat seat (26), there is no possibility of damaging the fixed object (10). A plurality of seats (26) distributed are passed through the leg piece receiving holes (27), and the fixed object (10) is
Since the clamp band (11) resiliently adheres to the fixed object (10), the clamp band (11) can be prevented from inadvertently idling with respect to the object (10), and can be stably and firmly used.

In the first to fourth embodiments, a plurality of floating leg pieces (23) for exerting an expansion / contraction spring force on the clamp band (11) are connected to the circumscribed band (2) in which the clamp band (11) is doubled. X1), it is cut and raised in an inward bent state. However, as shown in the fifth embodiment in FIGS. 24 and 25, conversely, it is cut and raised in an outward bent state from the inscribed band (X2). The raised and cut ends of the floating leg pieces (23) may be elastically brought into contact with the circumscribed zone (X1).

Although the fifth embodiment is adopted, the pilot nose (12), which also forms one end of the clamped band (11) and separates the inner overlapped portion (11a), is freely movable in the circumferential direction. The floating leg piece (23) cut out and bent from the inscribed zone (X2) outwardly from the inscribed zone (X2) forms a clamp band (11).
This is because it acts as its own expansion / contraction spring element and can exert a tightening force for fully adhering to the fixed object (10).

When the fifth embodiment is adopted, the floating leg (23) is connected to the inscribed band (X) according to the second and third embodiments shown in FIGS.
From both side edges of the metal strip material (M) in 2), a pair of facing parallel distribution states or alternating staggered distribution states are cut and raised outwardly, and further, interfere with the floating leg pieces (23). Do not use elongated holes (2
One or more of 5) may be formed with an opening on the longitudinal center line of the circumscribed zone (X1) that overlaps the inscribed zone (X2) doubly.

Since the other configurations in the second to fifth embodiments are substantially the same as those in the first embodiment, only the corresponding reference numerals to those in FIGS. , And a detailed description thereof will be omitted.

Such a clamp of the present invention can be mass-produced from the above stainless steel or other metal strip material (M) as follows.

That is, the manufacturing method will be described with reference to the first embodiment shown in FIGS. 1 to 16. The metal strip material (M), which is a long object in advance, is automatically transferred in one direction along the transfer line. In the intermittent transfer process, first, the pilot nose (12) and the locking pin receiving hole (1) of the clamp band (11) are pressed by a press punching die (not shown).
3), first and second tool receiving holes (14) (17), first
Fixed nail receiving hole (16), nose receiving hole (2
0), punching of the communication hole (21) for operating tool escape is performed. The processing state is as shown in FIGS.

Thereafter, the metal strip material (M) is passed through a processing die which is press-bent and raised (not shown), and the first and second tool engaging claws (15) and (19) of the clamp band (11), The bending and raising of the first and second fixing claws (18) and (22) and the cutting and raising of the floating leg piece (23) are performed at once. The processing state is as shown in FIGS. 13 and 14. In this case, the first and second tool locking claws (15) and (19) and the second fixing claw (22) are bent outwardly. It goes without saying that the first fixing claws (18) and the floating leg pieces (23) are bent inward in opposite directions.

Subsequently, the above-mentioned metal strip material (M) was used as shown in FIG.
By cutting so as to separate from the positions indicated by the reference numerals (C-C) of (14) to (14), the dimensions are set to the required constant length (L) as the clamp band (11), and finally the fixed length which is still in the developed flat plate state (L) clamp band (1
1) is fed from the transfer line to a forming machine (not shown), and the inner superposed portion (11a) and the outer superposed portion (11b) are fixed through the intermediate superposed portion (11c) by the forming machine. The product is wound and bent into a three-dimensionally overlapped overall circular spiral state by the amount (X), thereby completing a product as shown in FIGS.

In this case, as suggested from FIG. 10, a first tool receiving hole (14) opened in the inner overlapping portion (11a) of the clamp band (11) and a second tool receiving hole (14) also opened in the outer overlapping portion (11b). (2) The distance (D) between the tool receiving hole (17) and the tool receiving hole (17) is changed according to the length of the metal strip material (M) by controlling the transfer speed or the like, and the distance is adjusted according to the thickness of the target object (10). A wide variety of clamp fittings,
It can be manufactured very easily. When manufacturing various types of clamps whose diameters vary, it is not necessary to modify even the above-mentioned press-working dies, and the compatibility and the mass productivity are remarkably excellent.

The clamp fitting of the present invention is of a double spiral type, and has an inner overlapping portion (11) of the clamp band (11).
a) and the outer superposed portion (11b) has a triple overlap state at an intermediate position by a certain amount (X).
Since the product is heavily wound and three-dimensionally formed, a fluid feeding hose, a dust-proof bellows, a boot for a shaft coupling, and other objects to be fixed (10) can be used with the various devices (28) corresponding thereto. In fixing work to the connection circumferential surface (29) of (1), the clamp band (11) is temporarily fixed to the fixed object (10) as shown in FIG.

At the time of the temporary fixing, the clamp band (1
1) inner polymerized portion (11a) and outer polymerized portion (11a)
b) are overlapped with each other in a relaxed state, and the first tool receiving hole (14) of the inner overlapping portion (11a) has a communication hole (21) for operating tool escape of the intermediate overlapping portion (11c) circumscribed therewith. And the outer polymerized portion (11
It is parallel to the second tool receiving hole (17) of b). In addition, the first and second tool engaging claws (15) and (19) bent outward from the opening edges of the first and second tool receiving holes (14) and (17) are directed in opposite directions. Kept in state.

Therefore, a pair of operating claws (30) provided at the tip of the drawing-type operating tool (P) as shown in FIG.
From the outside to the first and second tool locking claws (15) and (19) of the clamp band (11), and strongly grip the pair of handles (31) of the operating tool (P). Then, a pair of the above-mentioned working claws (30) is connected to an assembly fulcrum shaft (3
A pulling operation is performed around 2).

Then, the clamp band (11)
In the process, the pilot nose (12), which is one end of the cut-out portion of the inner overlapped portion (11a), has a nose of the intermediate overlap portion (11c) circumscribing it, as suggested from FIG. While escaping into the receiving hole (20), the intermediate polymerized portion (11c)
Fixing claw (22) bent outwardly from the second fixed claw (22)
And the first fixing claws (18) bent inwardly and depressed from the outer overlapped portion (11b) circumscribing the first and second fixing claws (18) are displaced so as to get over each other, and eventually bite and locked. Here, as is clear from FIGS. 6 to 9, the fixed object (10) has a connection circumferential surface (2) of various devices (28).
It is fixed and integrated in the tightened state to 9). afterwards,
It goes without saying that the working claw (30) of the operating tool (P) is pulled out.

In this case, the inner overlapping portion (11a) and the outer overlapping portion (11b) of the clamp band (11) are overlapped three times by a certain amount (X) via the intermediate overlapping portion (11c). Because of being wound into a double circular spiral state, the diameter of the clamp band (11) can be lightly contracted and deformed under a remarkably small tightening torque by the above-mentioned drawing-type operating tool (P). By maintaining extremely high roundness,
The inner peripheral surface (tightening action surface) of the clamp band (11) can be evenly brought into close contact with the fixed object (10).

When the fixed object (10) itself is made of a rubber material having elasticity, the elasticity of the fixed object (10) also
The clamp band (11) can be tightened to the fixed object (10) in a completely adhered state, but the fixed object (10) loses its elasticity due to aging over time, Even when the clamp band (11) is made of a hard synthetic resin material having no elasticity, the clamp band (11) stores the elastic spring force of the floating leg piece (23) at the double overlap portion, and is thereby fixed. Things (1
A firm tightening state in which the hardness change and the thickness change of 0) are elastically absorbed by themselves, and the entire surface is in close contact with the fixed object (10);
Flattening of the entire clamp band (11) can be achieved.

[0063]

As described above, according to the present invention, a clamp band (11) made of a metal strip material (M) cut to a fixed length (L) is formed into an inner overlapped portion (one end side). As in the case of 11a), the outer overlapped portion (11b) which is the other end side of the winding and bending forms an overall double circular spiral state in which the fixed portion (X) is triple overlapped through the intermediate overlapped portion (11c). It is wound and bent to make it three-dimensional, and the diameter of the clamp band (11) is artificially forcibly shrunk and deformed, so that a fluid feeding hose made of a plastic such as rubber or synthetic resin, a dust-proof bellows, a boot for a shaft coupling, etc. The fixed object (10) is fixed to the connecting circumferential surface (29) of various devices (28) in a double spiral type clamp fitting,

Only one cut-off end of the inner superposed portion (11a) is cut out as a pilot nose (12) having a fixed width (W1) smaller than the fixed width (W) of the metal strip material (M) itself. A first tool receiving hole (14) is formed in the overlapped portion (11a), and the first tool receiving hole (14) is opened from the opening edge adjacent to the pilot nose (12) in the first tool receiving hole (14). While the nail (15) is bent out to the raised state,

In the outer overlapped portion (11b), the first fixed claw receiving hole (16) and the second tool receiving hole (17) are sequentially arranged in parallel from the other end side of the cut-off portion so as to be distributed in parallel. The first fixed claw (18) is bent in an inwardly depressed state from the opening edge on the other end side of the first fixed claw receiving hole (16), and the first fixed claw receiving hole in the second tool receiving hole (17). From the opening edge on the side adjacent to (16), the second tool locking claw (19) is bent to an outwardly raised state,

The intermediate overlapping portion (11c) has a nose receiving hole (20) for allowing the pilot nose (12) of the inner overlapping portion (11a) to escape, and the second tool engagement of the inner overlapping portion (11a). The communication holes (21) through which the claws (19) are released are distributed in parallel in an open state, and the second fixing claws (2) are opened from the opening edge of the communication holes (21) adjacent to the nose receiving holes (20).
2) bend out to the raised state,

The drawing tool (P) is drawn into both the first tool locking claw (15) of the inner overlapping portion (11a) and the second tool locking claw (19) of the outer overlapping portion (11b). Of the pair of operating claws (3) are locked.
When the diameter of the clamp band (11) is forcibly contracted and deformed by pulling and squeezing 0), the first fixed claw (18) of the outer overlapping portion (11b) and the intermediate overlapping portion (11c). And the second fixed claw (22) are set so as to bite and lock each other.

From the communication hole (21) for inserting the tool into the intermediate polymerization portion (11c), the second polymerization portion (11b)
A circumscribed zone (X) until reaching the tool receiving hole (17)
From 1), a plurality of floating leg pieces (23) scattered and distributed are cut and raised in an inwardly bent state, and overlap with the circumscribed zone (X1) to overlap the intermediate overlapping portion (11c).
From the nose receiving hole (20) of the
The clamp band can be elastically brought into contact with the inscribed zone (X2) of the floating leg piece (23) until it reaches the first tool receiving hole (14) of (a). (11) Since the telescopic spring force is accumulated in itself, there is an effect that the problem of the prior art described at the beginning can be completely improved.

That is, according to the above configuration of the present invention, the inner overlapping portion (11a) and the outer overlapping portion (11b) of the clamp band (11) for fastening the fixed object (10) are formed by:
The intermediate polymerized portion (11c) is bent and three-dimensionally wound into an overall double circular spiral state that overlaps three times by a certain amount (X) through the intermediate polymerized portion (11c).
c) a plurality of cut and raised inwardly bent from the circumscribed zone (X1) from the communication hole for tool escape (21) to the second tool receiving hole (17) of the outer overlapped portion (11b). Of the floating legs (23) have their circumscribed zones (X
The above intermediate polymerized portion (1) which overlaps with (1) two times
The clamp band is elastically contacted from the nose receiving hole (20) of 1c) to the inscribed zone (X2) of the inner overlapped portion (11a) until reaching the first tool receiving hole (14). (11) Since the expansion and contraction spring force in the diametric direction is accumulated in itself, the fixed object (10) is a dust-proof bellows or a boot for a shaft coupling molded from a hard synthetic resin material having no temporary elasticity. Even if the object to be fixed (10) is a fluid feeding hose made of an elastic rubber material or the like and the elasticity is lost due to aging over time, these objects are replaced with various devices. (28)
Can be brought into close contact with the connecting circumferential surface (29) with extremely high roundness, and a stable and firm tightening state can be obtained.

Further, the floating leg piece (23) serving as a telescopic spring element of the clamp band (11) is different from the elastic bump of the known invention described at the outset, in that the double overlapping state of the clamp band (11) is provided. As a plurality of pieces scattered and distributed in the circumscribed zone (X1), the circumscribed zone (X1) is cut and bent inward from the circumscribed zone (X1), and the cut-and-raised tip portion elastically moves to the corresponding inscribed zone (X2). , The weight distribution along the circumferential direction of the clamp band (11) is not particularly deviated, and there is no possibility that the clamp band (11) may break due to interference with peripheral members. As a result of maintaining the state, the apparatus can be used without any trouble in a device such as a vehicle that receives rotational force, vibration, and impact, and in combination with the uniform tightening force acting on the fixed object (10),
There is no risk of misalignment or falling off.

A fixed amount (X) of the intermediate polymerized portion (1) maintaining the triple overlapped state between the inner polymerized portion (11a) and the outer polymerized portion (11b) of the clamp band (11).
In 1c), the first fixing claw (18) bent inwardly from the outer overlapped portion (11b) and the second fixed claw (18) bent out from the middle overlapped portion (11c) to the opposite outwardly raised state. The clamp band (11) can be fixed in a circular spiral state by biting and locking with the second fixing claw (22). Since the clamped band (11) is installed at the cut-off end of the overlapped portion (11b), the outer overlapped portion (11b) warps outward from the cut-off end during use of the clamp band (11) by the bite lock. And the first and second fixing claws (18) and (22).
Has the effect of preventing the possibility of dissociation.

These effects can be achieved in substantially the same manner by adopting the structure described in claim 2. In short, in the present invention, the inner overlapping portion (11a) of the clamp band (11) and the outer The overlapped portion (11b) is a clamp fitting which is wound and bent three-dimensionally into an overall double circular spiral state in which the overlapped portion is overlapped three times by a fixed amount (L) via the intermediate overlapped portion (11c). Utilizing a portion where the intermediate overlapping portion (11c) overlaps the inner overlapping portion (11a) and the outer overlapping portion (11b) doubly, a plurality of floating portions serving as elastic spring elements of the clamp band (11) are utilized here. A leg piece (23) can be provided, and the floating leg piece (23) elastically absorbs a change in hardness and a change in thickness of the fixed object (10) by itself, and the fixed piece (10 It is as it can be exhibited the self-adjusting function in close contact with the entire surface.

In particular, if a plurality of floating leg pieces (23) are scattered and distributed as a pair on both side edges of the metal strip material (M) as in claim 4, the clamp band (11) of the clamp band (11) is provided. The circumscribed band (X
1) and the inscribed zone (X2) can be kept in a stable overlapping state in parallel with each other, and one or a plurality of elongated holes (2) as in claims 5 and 6.
5) can be opened without any trouble on the longitudinal center line of the metal strip material (M).
By forming the opening, there is an effect that the weight of the clamp band (11) itself can be reduced.

On the other hand, if the configuration of claim 7 is adopted,
One or a plurality of elongated leg piece receiving holes (2) formed in the inscribed zone (X2) of the clamp band (11).
According to 7), not only the clamp band (11) itself can be reduced in weight, but also the floating band (X2) and the circumscribing band (X1), together with the floating leg piece (23) which is allowed to escape. Can be maintained in an accurate double overlap state without shifting the position in the lateral direction,
An object to be fixed (10) through the leg piece receiving hole (27)
Seating (26) of the floating leg piece (23) in elastic contact with
Thereby, it is possible to prevent the clamp band (11) from inadvertently idling with respect to the fixed object (10), and it is possible to maintain a stable and firm use state.

[Brief description of the drawings]

FIG. 1 is a partially cutaway plan view showing an expanded flat state of a clamp according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is a perspective view showing a product obtained by three-dimensional winding and bending of FIG. 1;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a perspective view showing the tightened state of FIG. 3;

FIG. 6 is a partially cutaway sectional view showing a state of use on an object to be fixed.

FIG. 7 is a partially enlarged plan view of FIG. 6;

FIG. 8 is an enlarged sectional view taken along line 8-8 in FIG. 7;

FIG. 9 is an enlarged sectional view taken along line 9-9 in FIG. 7;

FIG. 10 is a plan view showing a state in which a clamp is punched from a metal strip material.

FIG. 11 is an enlarged plan view showing a part of FIG.

FIG. 12 is a sectional view taken along line 12-12 of FIG. 11;

FIG. 13 is an enlarged plan view showing a bending and erecting state corresponding to FIG. 11;

FIG. 14 is a sectional view taken along line 14-14 of FIG.

FIG. 15 is a front view showing a state in which a clamp is temporarily fixed to an object to be fixed and a state in which a drawing-type operation tool is locked with the clamp.

FIG. 16 is a front view showing a tightened state by a drawing operation of the clamp fitting following FIG. 15;

FIG. 17 is a perspective view showing a second embodiment of the present invention corresponding to FIG. 3;

FIG. 18 is a sectional view showing the state of use of FIG. 17;

FIG. 19 is a perspective view showing a third embodiment of the present invention corresponding to FIG. 3;

FIG. 20 is a perspective view showing a fourth embodiment of the present invention.

21 is a perspective view showing the tightened state of FIG. 20.

FIG. 22 is a sectional view showing the state of use of FIG. 20;

FIG. 23 is an enlarged sectional view showing a part of FIG. 22;

FIG. 24 is a perspective view showing a fifth embodiment of the present invention.

FIG. 25 is a front view of FIG. 24.

[Explanation of symbols]

 (10) ・ Fixed object (11) ・ Clamp band (11a) ・ Inner overlapping part (11b) ・ Outer overlapping part (11c) ・ Intermediate overlapping part (12) ・ Pilot nose (14) ・ First tool receiving hole ( 15) 1st tool locking claw (16) 1st fixed claw receiving hole (17) 2nd tool receiving hole (18) 1st fixed claw (19) 2nd tool receiving hole (20) nose Receiving hole (21), communication hole (22), second fixed claw (23), floating leg piece (25), pullout hole (26), seating (27), leg piece receiving hole (28), equipment (29) -Connection circumferential surface (31)-Working claw (M)-Metal strip material (P)-Operating tool (L)-Constant length (X)-Constant amount (X1)-Boundary zone (X2)-Inscribed Bandwidth (W), constant width (W1), constant width

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[Procedure amendment]

[Submission date] June 16, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Detailed description of the invention

[Correction method] Change

[Correction contents]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid feeding hose made of a plastic such as rubber or synthetic resin, a dust-proof bellows, a boot for a shaft coupling, and other fixed objects, which are connected to the circumference of connection of various devices. The present invention relates to a double spiral clamp for semi-permanently fixing to a surface.

[0002]

2. Description of the Related Art The present inventor has previously proposed Japanese Utility Model Publication No. 7-50631 as this type of double spiral clamp.

[0003] According to this, a clamp band (11) made of a metal strip material having a fixed length is connected to an inner overlapped portion (11a) at the one end side of the bend and an outer overlapped portion at the other end side of the bend. (11b) is bent and solidified into an overall double circular spiral state that overlaps three times by a certain amount (L) via the intermediate polymerization portion, and the partial constant amount (L) When compared with a clamp that is wound into a circular ring shape that overlaps only twice and remains three-dimensional, the clamp band (1) is pulled under a small drawing force (tightening torque) of about half.
The diameter (D) of 1) can be contracted and deformed lightly,
In addition, it can be said that there is an advantage that it can be uniformly adhered to the circumferential surface of the fixed object (10) under the highest possible roundness.

[0004]

However, as a result of intensive studies, the elastic bump (23) for accumulating the expansion and contraction spring force in the clamp band (11) itself has been used in the configuration of the above-mentioned invention. Since the outer overlapping portion (11b) of the band (11) is bent and bent outwardly, the band (11) is apt to be broken due to stress concentrated thereon, and may interfere with peripheral members. Since the weight distribution along the circumferential direction of the clamp band (11) is also offset, particularly when used in a device such as a vehicle that receives rotational force, vibration, or impact, the offset of the tightening force, displacement, or dropout may occur. Not without.

[0005] That said, the elastic bump (23)
If the installation of the clamp is omitted, the clamp band (11) itself does not exhibit the expansion and contraction spring force, so that the fixed object (10) may be a product made of a highly elastic rubber material,
In the case of a molded article made of a hard synthetic resin material having no inherent elasticity, the object to be fixed (10) is fully adhered to the connection circumferential surface (24) of various devices, and is stable and stable. It cannot be firmly tightened, and when it is used in a device such as a vehicle that is subjected to rotational force, vibration, or impact, there is a concern that the position may shift or fall off.

As a countermeasure, it is necessary to manufacture the diameter (D) of the clamp band (11) to a high-precision dimension that exactly matches the thickness of the fixed object (10). It is necessary to prepare a large number of varieties corresponding to changes in thickness, and the mass production effect cannot be exhibited.

[0007]

SUMMARY OF THE INVENTION The present invention is intended to further improve such a problem, and one end side of a metal strip material cut into a fixed length is constituted as an inner overlapped portion. Similarly, the other end side is used as an outer superposed portion, and the two portions are overlapped three times by a fixed amount via the intermediate superposed portion, so that a clamp band wound and bent into a double double circular spiral state. A first fixing claw bent inwardly and depressed from the outer overlapping portion to connect and fix the outer overlapping portion and the intermediate overlapping portion of the clamp band; In order to lock the pair of the second fixed claws bent in the upwardly protruding state and the operation tool for drawing between the outer overlapped portion and the inner overlapped portion of the clamp band, both of them are directed outward from both portions. Raised First and second tool engaging claws bent out of the operating tool, one of the operating claws of the operating tool is to the second tool engaging claw of the outer overlapping portion, and the other of the operating claws is also to the intermediate overlapping portion. Each of the opened tool escape communication holes is locked to the first tool locking claw of the inner overlapped portion from the communication hole for tool escape,
By operating Hikishibori the pair of action pawl, when forcibly contracted deformed diameter of the clamp band, above said first fixing tooth and between the middle polymer portion of the outer overlap portion
The second fixed claw is engaged with the second fixed claw so that
In the fixed double spiral clamp fitting,

[0008] Double overlap of the clamp band
Of the circumscribed band and inscribed band kept in the state, the circumscribed band
Multiple floating leg pieces cut and raised inward from the area
To the inscribed zone or vice versa.
Multiple floating legs cut out from the
By making elastic contact with the circumscribed zone,
The diametrical expansion and contraction spring force is accumulated in the pump band itself.
It is characterized by the following.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
1 and 2 relate to the first embodiment.
The flat plate state (material processing state) of the clamp
Figures 3 to 9 show products that have been rolled up and bent and their usage.
And the material of the clamp is constant
Thickness (T) (for example, about 0.5 to 1.0 mm) and constant width
(W) (for example, about 7 to 10 mm)
Steel (eg, SUS301, 304, 316 or 430)
And other metal strips (M) are used,
Hose for fluid supply and bellows for dust prevention
Size of the fixed object (10) such as
Cut to an appropriate fixed size as a fixed length (L) according to the length
Will be done.

[0010] (11) is cut to such a fixed size
From the metal strip material (M), a circular ring
The object to be fixed is formed by double winding and three-dimensional
Clamp van that directly serves the tightening action of (10)
And the other end of the bend with respect to one end of the bend.
Partial by a certain amount (X) so that the side indirectly circumscribes
It is kept in a triple overlapping state.

[0011] That is, a certain amount of clamping band (11) whose Maki bending one end side and the inner overlap portion (11a), also Maki bend the other end as the outer overlap portion (11b), at its intermediate position location (X ) Only overlap three times
It is rolled into a double circular spiral state overall and it is three-dimensional
It is.

(11c) is a fixed amount (X) of the triple oh
At the burlap, the inner polymerized portion (11a)
Weight interposed between the polymer and the outer polymerized portion (11b)
The intermediate polymerized portion (11c)
From the above-mentioned fixed amount (X) triple overlap,
Transfer to the one end of the winding band (11)
By the above, 2 inscribed in the outer polymerization portion (11b)
Heavy overlap state, also triple overlap
Reverse bending of clamp band (11) from tip location, etc.
By continuously shifting to the end side, the inner polymerized portion (1
A double overlap state circumscribing 1a) results.

Needless to say, the clamp band (11)
And has a constant width (W) of the metal strip material (M) itself.
But only one end of the inner polymerized portion (11a)
Is notch of both side edges in metal strip material (M)
The metal strip material (M) to a certain width (W).
Pyro with a narrow constant width (W1) of about 1/3
It is formed as a tongue (12). Its nose
The overhang length (L1) of (12) is, for example, about 7 to 10 m.
m.

(13) The above-mentioned pilot nose (12)
The clamp band is located near the overhanging base end of the
A substantially circular shape in plan view to the inner overlapping portion (11a) of (11)
Or a lock pin receiver for winding and bending that is opened as an ellipse
This is a drilling hole.
(Omitted) from the circumference of the core metal roll for winding and bending.
Accepts a standing lock pin and locks with the lock pin
The core roll is rotated under
Wrap the clamp band (11) into a circular spiral and bend it upright
Used to embody.

Also, (14) is the same as the inner polymerized portion (11).
a) from one end of the cut-off pin receiving hole (1)
3) a first tool receiving hole which is opened at a position further distant from the first tool receiving hole, and has a substantially square or elliptical shape in plan view.
And the side where the pilot nose (12) is located
From the opening edge of the first tool locking claw (15)
The height almost corresponds to the constant thickness (T) of the plate material (M) itself
It is only bent outward. Outward
The raised first tool engaging claw (15) is used to
Drawing force of operating tool for tool (diameter contraction of clamp band)
Force) to act as a reinforcing bead
Because

On the other hand, the inner polymerization portion (11a) is
Clamp bar that circumscribes the overlapping state of
The outer polymerized portion (11b) of the
The first fixed claw receiving hole (16) is sequentially
The openings are distributed in parallel with the second tool receiving hole (17).
Have been.

[0017] Both of them are substantially square or two-dimensional in plan view.
Has an elliptical shape, and its first fixed claw receiving hole
In the opening edge on the other end of the separation in (16),
Means that the first fixing claw (18) is one of the metal strip material (M) itself.
Inwardly depressed by a depth almost equivalent to constant thickness (T)
It is bent out. The first and second tool receiving holes
(14) Opening of (17) and first fixing claw receiving hole (16)
The width of the mouth is about a certain width (W) of the metal strip material (M).
It is dimensioned to just over a third.

In the second tool receiving hole (17),
Opening on the side adjacent to the first fixed claw receiving hole (16)
From the edge, the second tool locking claw (19) is also a metal band
The height almost corresponds to the constant thickness (T) of the plate material (M) itself
Only outwardly protruding, which is also within the above
Same as the first tool engaging claw (15) of the side overlap portion (11a)
Functions as a reinforcement bead for the purpose.

Further, (20) is the clamp band (1).
In (1), an intermediate polymerized portion (11c) existing at a place where the inner polymerized portion (11a) and the outer polymerized portion (11b) overlap three times by a certain amount (X) is applied to the metal strip material (M). A nose receiving hole which is elongated and formed in the longitudinal direction, wherein the inner overlapping portion (11)
a) Pilot nose (12)
The inner circumferential surface of the clamp band (11)
Surface) is kept stepless. (L2) receives the nose
It shows the opening length of the insertion hole (20), which is
Than the overhang length (L1) of the slot nose (12)
It is dimensioned considerably longer. Also nose receiving hole
The opening width of (20) is the same as that of the pilot nose (12).
Be slightly wider than the fixed width (W1)
Needless to say,

(21) The nose receiving hole (20)
To the intermediate polymerization part (11c)
It is a communication hole for tool escape that is elongated and is open.
The first tool receiving hole (14) of the inner overlap portion (11a)
And the first tool member in the communication hole (21).
Accept the pawl (15).

For this reason, a clamp by an operation tool described later is used.
During the drawing operation of the band (11), the intermediate polymerization part
(11c) and a double overlap state
The contacting inner superposed portion (11a) is relatively
There is no risk of displacement (axial direction). In addition,
The opening width of the communication hole (21) for fitting escape is the first and second steps described above.
Tool receiving holes (14) (17) and first fixed claw receiving holes
(16), substantially similar to those of the nose receiving holes (20)
Have the same dimensions.

In the communication hole (21) for tool escape,
Opening on the side adjacent to the nose receiving hole (20)
From the jig, the first fixing claw of the outer superposed portion (11b)
The second fixing claw (22), which can be engaged with (18),
Corresponds almost to the constant thickness (T) of the metal strip material (M) itself
It is bent out to a raised state by a height.

That is, a second fixing claw (22) bent outwardly from the intermediate polymerization portion (11c),
The first fixed claw (18) bent inwardly and depressed from the outer overlapped portion (11b) circumscribing the outer overlapped portion (11b) has a direction opposite to that of the toes, and the outer overlapped portion (11).
In the polymerization on a plane Obaratsupu the double b) and the intermediate polymer portion (11c), Ru der not adapted to stop with engagement eating one another.

At this time, the intermediate polymerized portion (11c)
Pilot nose (1) of the inner superposed part (11a)
2) accepts the nose of the intermediate polymerized part (11c)
In addition to being able to escape into the hole (20),
It is bent out from the side overlap portion (11a) to an outward raised state.
The first tool engaging claw (15) also has an intermediate overlapping portion (11c).
Is received in the communication hole (21) of
Although it is a heavy spiral clamp, its clamp bar
(11) can be significantly flattened as a whole.
The inner peripheral surface (tightening action surface) can be kept in a highly-circular ring state
It is.

Intermediate polymerization part of clamp band (11)
(11c) is a triple overlap part with a certain amount (X)
To both the one end of the bend and the other end of the bend.
By continuation of the line, the inner superposed portion (11a) is arranged
Outer overlapping part (11b) and double overlap each
As described above, the state is maintained.
The above intermediate polymerized portion corresponding to the overlap portion
(11c) External weight from the tool escape communication hole (21)
Reach the second tool receiving hole (17) of the joint (11b)
The circumscribed band (X1) before the
The plurality of floating leg pieces (2
3) preferably a constant thickness of the metal strip material (M) itself
Cut inward and bent to a depth almost equivalent to (T)
Have been.

These floating leg pieces (23) are cut and raised.
The circumscribed band (X1) distributed here is
The intermediate polymerized portion (11) inscribed in a wrapped state
c) through the nose receiving hole (20) to the inner polymerized portion (1).
1a) until it reaches the first tool receiving hole (14).
In order to keep the inscribed zone (X2) and the constant gap (S),
By floating from the contact zone (X2),
The telescopic spring force along the diameter direction of the arm (11) is accumulated.
It is.

In this respect, in the first embodiment shown in FIGS. 1 to 9, a substantially U-shaped cut line (24) in a plan view is scattered at a constant pitch on the longitudinal center line of the metal strip material (M). was granted to the state, leg floated from the score lines (24)
(23) is bent inward and the tip is
Inscribed band that overlaps with the circumscribed band (X1) doubly
(X2) is elastically contacted.

That is, the object to be fixed (10) is, for example, dustproof.
No inherent elasticity such as bellows or boots for shaft couplings
When the molded product is made of hard synthetic resin material
Is the above-mentioned clamp band (11) for tightening it.
The floating band (23) allows the clamp band (1
1) Makes itself expand and contract, and along its diametrical direction
The clamp band (11) receives the rebound resilience of the elongation deformation.
A firm tightening force that can completely adhere to the fixed object (10)
The purpose is to use it.

More specifically, on the clamp band (11)
Exclude locations where triple overlap occurs by a certain amount (X)
In the case of double overlap, the circumscribed band
A plurality of cut and distributed inwardly bent states from (X1)
Attach the floating legs (23) to the clamp band (11)
By acting as a telescopic spring element of the body,
(10) It absorbs the change in hardness and the change in thickness elastically.
Is fine-tuned and is always in full contact with the object (10)
It is made to be able to do.

If such a purpose can be achieved,
17 and 18 corresponding to FIGS.
As shown in the plan view of the metal strip material (M) on both side edges
L-shaped cut lines (24) facing each other
Attached to the parallel state where the distribution is scattered in the tree,
Float leg piece (23) inward from two cut lines (24)
You may bend it up.

As shown in the third embodiment of FIG.
Similarly, to both side edges of the metal strip material (M)
L-shaped cut lines (24) alternate at pitches at regular intervals
(24)
Even if the leg (23) is bent inward
I can't change.

The lid is closed and the second and third parts of FIGS.
Although the embodiment is adopted, the clamp band (11)
Between the outer polymerized part (11b) and the intermediate polymerized part (11c)
Biting engagement with first and second fixed claws (18, 19)
One end of the inner superposed part (11a)
Pilot nose (12) is a clamp band
(11) in a state where it can slide freely in the circumferential direction.
In the same manner as in the configuration of the first embodiment,
Telescopic spring force on the tightening action surface of the band (11)
This is because it is possible to exert

In particular, according to the configurations of the second and third embodiments,
If any of the floating leg pieces (23) are metal strips,
Dotted distribution at the position eccentric to both side edges of material (M)
Along the longitudinal center line of the remaining metal strip material (M).
One or more very elongated holes (2
5) Open so that it does not interfere with the floating leg (23).
Mouth can be formed and the hole (25) is clamped
It is also possible to help reduce the weight of the band (11) itself.
You.

FIGS. 20 to 23 show a fourth embodiment.
In this, a plurality of floating leg pieces (23) are shown in FIGS.
9, the longitudinal direction of the metal strip material (M) is similar to that of the first embodiment.
A dotted distribution state at a fixed pitch along the center line
From the circumscribed zone (X1) to an inward bent state.
As well as a flat seat at the tip of each cut and raised
As (26), it is continuously bent in a substantially rectangular shape when viewed from the front
ing.

And, of such a floating leg piece (23)
Extremely long leg piece receiving holes (2
7) is overlapped with the circumscribed band (X1).
To the inscribed band (X2) that overlaps with
Opening is formed along the longitudinal center line of the metal strip material (M)
As a result, the solidified through the leg receiving hole (27).
To the fixed item (10), seat the floating leg pieces (23) (2)
6) Make the clamp band (11)
You can accumulate diametrical expansion spring force on your body
Swelling.

According to the configuration of the fourth embodiment,
Inside from the circumscribed band (X1) of the clamp band (11)
A plurality of floating leg pieces (23) cut and raised in a bent direction
Overlap with its circumscribed band (X1) doubly.
Escape into the leg receiving hole (27) of the inscribed zone (X2)
It can be operated by operating tools described later.
During the drawing operation of the clamp band (11), the double
The inscribed band (X2) and the circumscribed band in the overlapping state
(X1) is relatively displaced in the lateral direction (axial direction).
There is no risk of displacement, and the leg piece receiving hole (2
7) The opening of the double spiral clamp
The lamp band (11) can be reduced in weight rationally
You.

Further, the cut-and-raised point of the floating leg piece (23)
The ends are bent as flat seats (26)
Therefore, there is no possibility of damaging the fixed object (10).
In addition, the plurality of seats (26) distributed in the
The fixed object (10) is inserted through the leg piece receiving hole (27).
Elastically adheres to the fixed object (10).
Of the clamp band (11) itself
It can be maintained in a stable and solid state of use.

In the first to fourth embodiments, the clamp bun
A plurality of floating legs that exert a telescopic spring force on the door (11)
Put the piece (23) on the double of its clamp band (11).
-Inward bent state from the circumscribed band (X1) that wraps
24 and 25, the fifth embodiment shown in FIGS.
As shown, on the contrary, outward bending from the inscribed band (X2)
Cut and raised, the cut and raised of each floating leg piece (23)
The end may be elastically contacted with the circumscribed zone (X1).
No.

Although the fifth embodiment is adopted, the pilot nose (12), which also forms one end of the clamped band (11) and separates the inner overlapped portion (11a), is freely movable in the circumferential direction. The floating leg piece (23) which is in a slidable state and which is cut and raised outward from the inscribed zone (X2) forms a clamp band (11).
This is because it acts as its own expansion / contraction spring element and can exert a tightening force for fully adhering to the fixed object (10) .

In the case where the fifth embodiment is adopted, FIG.
Although not shown, the second and third embodiments of FIGS.
Accordingly, the floating leg (23) is connected to the inscribed band (X
2) Double side edge of metal strip material (M)
From each other, one pair of opposed parallel distributions and alternating staggered
As an array distribution state, it may be cut and raised outward, or even
Elongated holes (2) that do not interfere with the floating leg pieces (23)
5) one or a plurality of the inscribed bands (X2)
On the longitudinal center line of the circumscribed zone (X1)
An opening can be formed.

Incidentally, other structures in the second to fifth embodiments are described.
Since the configuration is substantially the same as the first embodiment,
To fill in the corresponding symbols in FIGS.
The detailed description is omitted.

Such a clamp of the present invention is
From the above stainless steel and other metal strip materials (M)
It can be mass-produced as follows.

That is, based on the first embodiment shown in FIGS.
Explaining the manufacturing method, a metal strip that is a long object in advance
Automatic intermittent operation of sheet material (M) in one direction along the transfer line
In the process of transferring to
(Not shown), the clamp band (11)
Slot nose (12) and locking pin receiving hole (1
3), first and second tool receiving holes (14) (17), first
Fixed nail receiving hole (16), nose receiving hole (2
0), punching of communication hole (21) for operating tool escape
Perform The processing state is as shown in FIGS.
You.

Thereafter, the metal strip material (M) is bent by press bending and raising (not shown), and is passed through the first and second tool engaging claws (15) (19) of the clamp band (11). The bending and raising of the first and second fixing claws (18) and (22) and the cutting and raising of the floating leg piece (23) are performed at once. The processing state is as shown in FIGS. 13 and 14, in which case
The first and second tool locking claws (15) and (19) and the second fixed claw (2)
2) is bent outward and the first fixed claw (1)
8) and the floating leg piece (23) is bent in the opposite inward direction
Needless to say.

Subsequently, the metal strip material (M) was used as shown in FIG.
To cut off from the position indicated by the reference
By setting, the clamp band (11)
Dimensioned to the required constant length (L) and finally unfolded
A fixed length (L) clamp band (1
1) from the transfer line to a forming machine (not shown)
And send it to the inside by the forming machine.
Intermediate between polymerized part (11a) and outer polymerized part (11b)
A certain amount (X) is tripled through the polymerization portion (11c).
Wound into an overlapping double circular spiral
It can be bent and made into a product as shown in Figs.
It is.

In this case, as suggested from FIG.
Opening in the overlapping part (11a) inside the lamp band (11)
The first tool receiving hole (14) to be
A second tool receiving hole (17) opening at the minute (11b);
Distance (D) in the metal strip material (M)
Change the length by controlling the speed, etc.
A wide variety of clamp fittings according to the thickness of the fixed product (10)
It can be manufactured very easily. The caliber varies
When manufacturing various types of clamps,
It is no longer necessary to modify the processing dies one by one.
Therefore, its compatibility and mass production are remarkably excellent.

The clamp of the present invention is a double spiral type.
And the inner overlapping portion (11) of the clamp band (11).
a) and a certain amount at the intermediate position where the outer polymerized part (11b) is
(X) only the overall 2 which keeps the triple overlap state
Since it is a product that is heavily wound and bent,
Fluid supply hoses, dust proof bellows, and shaft coupling boots.
And other fixed objects (10)
For fixing work to the connection circumferential surface (29) of the device (28),
Therefore, the clamp band (11) is connected as shown in FIG.
And temporarily fix it in a state where it is inserted into the fixed object (10).
You.

At the time of the temporary fixing, the clamp band (1
1) inner polymerized portion (11a) and outer polymerized portion (11a)
b) overlaps in a relaxed state, and
The first tool receiving hole (14) of the overlapping portion (11a) is
Operation tool escape of intermediate polymerization part (11c) circumscribed
And the outer overlapping portion (11)
It is parallel to the second tool receiving hole (17) of b). Only
Also open the first and second tool receiving holes (14) and (17).
First and second steps bent outward from the mouth edge
The tool locking claws (15) and (19) are oriented in opposite directions.
Will be kept.

Therefore, an operation for drawing and drawing as shown in FIG.
A pair of working claws (30) provided at the tip of the tool (P)
The first and second tool locking claws of the clamp band (11).
(15) After inserting and locking into (19) from the outside,
Hold the pair of handles (31) of the working tool (P) firmly
And tighten the pair of working pawls (30) with the assembly fulcrum shaft (3
A pulling operation is performed around 2).

Then , the clamp band (11)
Is forcibly shrunk and deformed.
As suggested, the separation of the inner polymerized part (11a)
Pilot nose (12) forming one end circumscribes this
To nose receiving hole (20) of intermediate polymerization part (11c)
While escaping, the intermediate polymerized part (11c)
Fixing claw (22) bent outwardly from the second fixed claw (22)
And inward from the outer superposed portion (11b) circumscribing it.
The first fixed claw (18) bent into the depressed state is
It shifts to get over the
And the object to be fixed (10) is
As is clear, the connection circumferential surface (2
It is fixed and integrated in the tightened state to 9). afterwards,
Pull out the operation claw (30) of the operation tool (P) outward.
Needless to say.

In this case, the inner overlapping portion (11a) and the outer overlapping portion (11b) of the clamp band (11) are overlapped three times by a certain amount (X) via the intermediate overlapping portion (11c). such double for bent Maki circular spiral state, the upper Symbol Hikishibori manipulation tool
(P), under extremely small tightening torque,
Lightly shrink and deform the diameter of the lamp band (11).
By maintaining extremely high roundness,
The inner peripheral surface (tightening action surface) of the clamp band (11)
The entire surface can be evenly adhered to the fixed object (10).
You.

The fixed object (10) itself has elasticity.
If it is made of rubber material,
Completely attach the clamp band (11) to the object (10)
Can be tightly tightened,
When (10) loses elasticity due to aging over time
Or made of a hard synthetic resin material that has no inherent elasticity
Even in such a case, the clamp band (11) is
-Telescopic bar with floating leg (23) at bar wrap
Since the power is accumulated, the fixed object (1
0) The hardness change and the thickness change are elastically absorbed by themselves.
A firm tightened state that is in full contact with the fixed object (10),
Achieve overall flattening of the clamp band (11).
Can be.

[0053]

As described above, according to the present invention, one end of the metal strip material (M) cut to a predetermined length (L) is an inner overlapped portion (11a), and the other end is also an outer overlapped portion. (11b), both parts (11a) and (11b)
Is a certain amount (X) via the intermediate polymerization part (11c).
A three-dimensionally bent clamp band (1
In order to connect and fix the outer overlapping portion (11b) and the intermediate overlapping portion (11c) of the clamp band (11), the first overlapping portion (11b) is bent inwardly from the outer overlapping portion (11b). A pair of a fixing claw (18), a second fixing claw (22) bent out of the intermediate overlapping portion (11c) to a corresponding outwardly raised state, and an outer overlapping portion of the clamp band (11). In order to lock the drawing and drawing operation tool (P) between the (11b) and the inner overlapping portion (11a), both of the first and second portions (11a) and (11b) are bent outward in a raised state. , 2 tool locking claw (1
5) and (19), and one of the working claws (30) of the operating tool (P) is connected to the second tool locking claw (19) of the outer overlapping portion (11b ), and the working claw (30) is also The other
Tool opening for opening the intermediate polymerization part (11c)
From the communication hole (21) to the inner overlapping portion (11a).
(1) Each of the tool engaging claws (15) is engaged with the
By pulling and squeezing the nail (30),
The diameter of the pump band (11) was forcibly shrunk and deformed.
At this time, the first fixing claw (1) of the outer superposed portion (11b)
8) and the second fixing claws (2) of the intermediate polymerized portion (11c).
2) and are set so that they bite and lock each other
In the double spiral clamp,

Double over of the clamp band (11)
-The circumscribed band (X1) and the inscribed band kept in the wrapped state
(X2), inwardly bent from its circumscribed band (X1)
Inscribed a plurality of floating leg pieces (23) cut and raised in the state
Area (X2) elastically, or vice versa
A plurality of floats cut and raised from (X2) in an outward bent state
The leg piece (23) is brought into elastic contact with the circumscribed zone (X1).
By doing so, the clamp band (11) itself
Because the radial expansion spring force is accumulated,
There is an effect that the problem of the related art can be completely improved.

That is, according to the above configuration of the present invention, the inner overlapping portion (11a) and the outer overlapping portion (11b) of the clamp band (11) for tightening the fixed object (10) are formed by:
The circumscribed circumscribing is made by winding and bending into an entire double circular spiral state that overlaps by a certain amount (X) three times through the intermediate polymerization part (11c), and the double overlap state is maintained. Of the band (X1) and the inscribed band (X2), a plurality of floating leg pieces (23) cut and raised in an inwardly bent state from the circumscribed band (X1) include the inscribed band (X1).
2), or vice versa.
The plurality of floating leg pieces (23) cut and raised outwardly from 2) are elastically contacted with the circumscribed zone (X1), so that the clamp band (11) itself expands and contracts in the diameter direction. Since the spring force is accumulated, the fixed object (1
Even if 0) is a dust-proof bellows or a boot for a shaft coupling molded from a hard synthetic resin material having no provisional elasticity,
In addition, even if the fixed object (10) loses its elasticity due to aging over time as a fluid feeding hose or the like made of an elastic rubber material, it can be used for various devices.
To the connection circumferential surface (29) of (28), extremely high roundness
Can be adhered to the whole surface, and its stability and solidity
It is possible to obtain a tight state.

Moreover, the extension of the clamp band (11)
The floating leg (23) acting as a compression spring element is described at the beginning.
Unlike the well-known elastic aneurysm, its clamp band
The circumscribed band in the double overlap state of (11).
(X1) as a plurality of scattered distributions,
(X1) is cut and raised in an inward bent state, and the cut and raised
The tip part elastically contacts the corresponding inscribed zone (X2).
Or bent outward from the inscribed band (X2)
The circumscribed band corresponding to the cut-and-raised tip
Area (X1) is elastically contacted.
Weight distribution along the circumferential direction of the clamp band (11)
Destroyed due to local deviation or interference with surrounding components
To maintain the overall flat state without fear of
As a result, it also supports devices such as vehicles that are subject to rotational force, vibration, and shock.
It can be used without any trouble,
In addition to the uniform tightening force used,
No worries about it.

The overlapping portion inside the clamp band (11)
(11a) and the outer superposed portion (11b)
A certain amount (X) of the intermediate polymerization part (1
In 1c), the inwardly-inverted portion from the outer polymerized portion (11b) is formed.
The first fixed claw (18) bent to the sunk state, and the middle
Bent out from the overlapped part (11c) to the opposite outward raised state
The second fixed claw (22) is engaged with the bite
The above-mentioned clamp band (11) is formed in a circular spiral shape.
It can be fixed to the state.

In short, in the present invention, the clamp band (1
1) inner polymerized portion (11a) and outer polymerized portion (11a)
b) is a clamp metal which is wound and bent three-dimensionally into an entire double circular spiral state which overlaps three times by a fixed amount (L) via the intermediate polymerization part (11c), Utilizing the point where the portion (11c) overlaps the inner overlapping portion (11a) and the outer overlapping portion (11b) doubly, a plurality of floating leg pieces serving here as a telescopic spring element of the clamp band (11).
(23), and its floating leg piece (23)
Changes in hardness and thickness of the object (10)
Elastically absorbs and adheres to the entire surface of the object (10)
The self-adjusting function can be exerted.

In particular, a plurality of floating legs according to claim 3
Piece (23) to both side edges of metal strip material (M)
If it is scattered as one pair, the clamp bar
(11) and the circumscribed band (X
1) and the inscribed band (X2) are
In addition to being able to maintain the
One or more elongated holes (25)
Open without any trouble on the longitudinal center line of the metal strip material (M)
It is also possible to form the opening of the hole (25).
Therefore, the weight of the clamp band (11) itself has been reduced.
There is an effect that can be achieved.

On the other hand, if the structure of claim 5 is adopted,
Opening to the inscribed band (X2) of the clamp band (11)
One or more elongated leg piece receiving holes (2
7) reduces the weight of the clamp band (11) itself.
What can be achieved, of course, a floating
Together with the leg piece (23), the inscribed band (X2) and the outside
Accurate without shifting the position of the contact band (X1) in the lateral direction
While being able to keep a double overlap state,
An object to be fixed (10) through the leg piece receiving hole (27)
Seating (26) of the floating leg piece (23) in elastic contact with
The clamp band for the object (10)
(11) Prevents accidental idling, stable and solid usage
There is an effect that can be maintained.

Claims (7)

[Claims] 1. A clamp band (11) made of a metal strip material (M) cut to a predetermined length (L) is wound and bent at the other end similarly to an inner overlapped portion (11a) at one end of the bent band. The outer overlapping portion (11b) on the side is wound and bent into a three-dimensional overall double spiral shape by overlapping with the intermediate overlapping portion (11c) by a certain amount (X), and the clamp band is formed. By artificially forcibly deforming the diameter of (11), a fluid feeding hose made of a plastic such as rubber or synthetic resin, a dustproof bellows, a boot for a shaft coupling, and other fixed objects (10) are formed. , Various equipment (28)
In the double spiral clamp used for fixing to the connection circumferential surface (29) of (1), only one of the cut ends of the inner overlapping portion (11a) is smaller than the fixed width (W) of the metal strip material (M) itself. Notched as a pilot nose (12) having a width (W1), and a first tool receiving hole (14) is also formed in the inner overlapping portion (11a). The first tool engaging claw (15) is bent outwardly from the opening edge on the side adjacent to the nose (12), while the outer overlapped portion (11b) is separated from the other end side by the first one. The fixed claw receiving hole (16) and the second tool receiving hole (17) are open-distributed in a side-by-side state, and the first fixed claw receiving hole (16) is separated from the opening edge at the other end of the first fixed claw receiving hole (16). The claw (18) is bent in an inwardly depressed state, and the second tool engaging claw (19) is opened from the opening edge of the second tool receiving hole (17) adjacent to the first fixed claw receiving hole (16). Is bent outward, and the intermediate polymerized portion (11c) is provided with an internal polymerized portion (11).
a) a nose receiving hole (20) into which the pilot nose (12) escapes;
a) The communication holes (21) into which the second tool engagement claws (19) are relieved and the openings are distributed in a side-by-side state, and the communication holes (21) on the side adjacent to the nose receiving holes (20). The second fixing claw (22) is bent outward from the opening edge so as to protrude outward, and the first tool engaging claw (15) of the inner overlapping portion (11a) is bent.
The action claw (30) of the drawing-type operating tool (P) is applied to both the second tool engagement claw (19) of the outer overlapped portion (11b) and the second tool engagement claw (P).
When the diameter of the clamp band (11) is forcibly shrunk and deformed by pulling and squeezing the pair of working claws (30), the second overlapping portion (11b) of the outer overlapping portion (11b) is locked. 1 fixed claw (18) and intermediate polymerization portion (11
c) and the second fixed claw (22) are set so as to bite and engage with each other, and from the tool escape communication hole (21) of the intermediate overlap portion (11c) to the outside overlap portion (11b). From the circumscribed zone (X1) until reaching the second tool receiving hole (17),
A plurality of scattered floating leg pieces (23) are cut and raised in an inwardly bent state, and overlap the circumscribed zone (X1) with the nose receiving hole (20) of the intermediate polymerization portion (11c). ) To the first tool receiving hole (14) of the inner overlapped portion (11a).
(2) The clamp band (11) itself is made to accumulate diametrical expansion and contraction spring force by making the cut-and-raised ends of the floating leg piece (23) elastically contact with each other. Double spiral clamp. 2. A clamp band (11) made of a metal strip material (M) cut to a predetermined length (L) is wound and bent at the other end in the same manner as an inner overlapped portion (11a) at one end side of the bend. The outer overlapping portion (11b) on the side is wound and bent into a three-dimensional overall double spiral shape by overlapping with the intermediate overlapping portion (11c) by a certain amount (X), and the clamp band is formed. By artificially forcibly deforming the diameter of (11), a fluid feeding hose made of a plastic such as rubber or synthetic resin, a dustproof bellows, a boot for a shaft coupling, and other fixed objects (10) are formed. , Various equipment (28)
In the double spiral clamp used for fixing to the connection circumferential surface (29) of (1), only one of the cut ends of the inner overlapping portion (11a) is smaller than the fixed width (W) of the metal strip material (M) itself. Notched as a pilot nose (12) having a width (W1), and a first tool receiving hole (14) is also formed in the inner overlapping portion (11a). The first tool engaging claw (15) is bent outwardly from the opening edge on the side adjacent to the nose (12), while the outer overlapped portion (11b) is separated from the other end side by the first one. The fixed claw receiving hole (16) and the second tool receiving hole (17) are open-distributed in a side-by-side state, and the first fixed claw receiving hole (16) is separated from the opening edge at the other end of the first fixed claw receiving hole (16). The claw (18) is bent in an inwardly depressed state, and the second tool engaging claw (19) is opened from the opening edge of the second tool receiving hole (17) adjacent to the first fixed claw receiving hole (16). Is bent outward, and the intermediate polymerized portion (11c) is provided with an internal polymerized portion (11).
a) a nose receiving hole (20) into which the pilot nose (12) escapes;
a) The communication holes (21) into which the second tool engagement claws (19) are relieved and the openings are distributed in a side-by-side state, and the communication holes (21) on the side adjacent to the nose receiving holes (20). The second fixing claw (22) is bent outward from the opening edge so as to protrude outward, and the first tool engaging claw (15) of the inner overlapping portion (11a) is bent.
The action claw (30) of the drawing-type operating tool (P) is applied to both the second tool engagement claw (19) of the outer overlapped portion (11b) and the second tool engagement claw (P).
When the diameter of the clamp band (11) is forcibly shrunk and deformed by pulling and squeezing the pair of working claws (30), the second overlapping portion (11b) of the outer overlapping portion (11b) is locked. 1 fixed claw (18) and intermediate polymerization portion (11
c) and the second fixing claw (22) are set so as to bite and lock each other, and the nose receiving hole (2) of the intermediate overlapping portion (11c) is set.
From the inscribed zone (X2) from the point (0) to the first tool receiving hole (14) of the inner overlapped portion (11a), a plurality of floating leg pieces (23) distributed in a dotted manner are bent outward. And a second tool receiving hole (21b) of the outer overlapped portion (11b) from the tool escape communication hole (21) of the intermediate overlapped portion (11c) which double overlaps with the inscribed zone (X2). 17) until the circumscribed band (X)
1) The diametrical expansion and contraction spring force is accumulated in the clamp band (11) itself by making the cut and raised ends of the floating leg piece (23) elastically contact with each other. Double spiral clamp. 3. The method according to claim 1, wherein a plurality of floating leg pieces are distributed at pitches at regular intervals on the longitudinal center line of the metal strip material. Heavy spiral clamp. 4. A plurality of floating leg pieces (23) are scattered and distributed on both side edges of the metal strip material (M) in a pair of opposed parallel or alternate staggered arrangements. The double spiral clamp according to claim 1. 5. A plurality of floating leg pieces (23) are scattered along both side edges of a metal strip material (M), and folded inward from a circumscribed zone (X1) of the clamp band (11). One or a plurality of elongated holes (25) are formed in the inscribed zone (X2) which overlaps with the circumscribed zone (X1) while being cut and raised in a bent state.
2. The double spiral clamp according to claim 1, wherein an opening is formed along a longitudinal center line of the metal strip material (M). 6. A plurality of floating leg pieces (23) are scattered along both side edges of a metal strip material (M) and are directed outward from an inscribed zone (X2) of the clamp band (11). One or a plurality of elongated holes (25) are formed in a circumscribed zone (X1) which doubles and overlaps the inscribed zone (X2) while being cut and raised in a bent state.
3. The double spiral clamp according to claim 2, wherein an opening is formed along a longitudinal center line of the metal strip material (M). 7. A state in which a plurality of floating leg pieces (23) are scattered and distributed along the longitudinal center line of the metal strip material (M), and inward from a circumscribed zone (X1) of the clamp band (11). While being cut and raised in a bent state, each of the cut and raised ends is further bent as a flat seat (26), while the floating leg is placed in an inscribed zone (X2) that overlaps with the circumscribed zone (X1) doubly. 2. The double spiral clamp according to claim 1, wherein one or a plurality of elongated leg piece receiving holes (27) into which the piece (23) escapes are formed correspondingly.