JP2000085718A - Binding device for binding band - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a binding device of a bound band which is relatively simple in structure and driving mechanism, low in manufacturing cost, and capable of binding bound objects without any gap. SOLUTION: A winding part 74 is provided with shuttle arm 22 whose base part is turnably and pivotably attached thereto, and an open cover 23 which is turnably and pivotably attached opposite to the shuttle arm 22, a bound band is guided and held on an inner surface of the open cover 23, and a means to release the bound band from the inner surface of the open cover 23 when the open cover 23 is opened after a tip part of a band body is passed in a locking hole in the bound band, is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a binding apparatus for automatically binding a group of linear bodies (hereinafter, referred to as binding objects) such as a plurality of cables and wires using a binding band. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a binding device for a binding band capable of automatically and continuously feeding a binding band made of a synthetic resin, fastening at the time of binding, and cutting an excess end.

[0002]

2. Description of the Related Art As a conventional binding device for a binding band used for winding and tightening a binding band around a binding object such as a wire harness of an automobile so as to integrally bind the binding objects, for example, Japanese Patent Publication No. 7-498
39 and Japanese Patent Publication No. 25664650. However, the binding devices disclosed in these publications have a disadvantage that the structure and the driving mechanism are complicated and the manufacturing cost is high.

When the binding band is wound around the binding object and fastened, the binding object is arranged in a space formed between the jaw and the rotatable cover, and the cover is turned. By moving to form a closed space, the binding band is guided on the inner surface of the cover to make the binding band into a loop shape, and then the tip of the binding band is inserted into a locking hole formed in the head of the binding band, As shown in FIG.
0 is tightened. At this time, simply tightening the front end of the binding band 60 requires only the binding band 6.
There is a space 67 between the zero and the binding object 66, and thus the binding object 66 is loosely bound.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks, and has as its object the structure and the driving mechanism are relatively simple, the manufacturing cost is low, and It is an object of the present invention to provide a binding device for a binding band capable of binding an object to be bound without a gap.

It is still another object of the present invention to provide a binding device for a binding band, which has a relatively simple structure and driving mechanism, and is less likely to fail.

[0006]

According to a first aspect of the present invention, there is provided a binding device for a binding band, comprising: a head having a locking hole in which a locking portion is formed on an inner surface; and a band body extending from the head. A binding claw that is engaged with the locking portion when the band main body is inserted into the locking hole, wherein the locking claw is provided on the band main body. A winding portion that is wound around the outer periphery of the object, the leading end of the band main body is inserted into the locking hole, a feeding portion that feeds the binding band into the winding portion, and wound around the object to be bound by the winding portion. A tightening portion for tightening the binding band, a cutting mechanism for cutting off an excess portion of the band main body after the fastening of the binding band is completed, and a driving mechanism for driving the winding portion, the feeding portion, the tightening portion, and the cutting mechanism. The winding portion has a base portion pivotally connected to the base portion so as to be rotatable. A cuff arm, and an open cover pivotally attached to the claw arm so as to be rotatable. The inner surface of the open cover guides and holds the binding band, and engages with the binding band. When opening the open cover after passing the tip of the band body through the stop hole,
Means for releasing the binding band from the inner surface of the open cover is provided, thereby achieving the above object.

In a preferred embodiment of the present invention, the means for holding and releasing the binding band on the inner surface of the open cover is a bar provided on the inner surface of the open cover, and the bar is formed on the inner surface of the open cover. A space is provided between the bar and the guide groove, and a space is formed between the bar and the guide groove so as to guide the binding band. When the above pressure acts on the bar, the bar is urged by the urging means so that the bar is retracted from the guide groove.

According to a third aspect of the present invention, there is provided a binding device for a binding band.
A locking portion having a head portion having a locking hole formed on an inner surface thereof; and a band body extending from the head portion, and engaging with the locking portion when the band body is inserted into the locking hole. A binding claw provided on the band body, wherein the binding claw is wound around an outer periphery of an object to be bound, and a leading end of the band body is inserted into the locking hole. Part, a feeding part for feeding the binding band to the winding part, a tightening part for tightening the binding band wound around the binding object by the winding part, and an excess of the band main body after the fastening of the binding band is completed. A cutting mechanism that cuts off a portion, and a drive mechanism that drives the winding unit, the feeding unit, the tightening unit, and the cutting mechanism. The cutting mechanism is arranged movably in the winding unit direction and the cutter is fixed. Cutter holder and the pivot A tightening arm, and a toggle arm connected to a rear end of the tightening arm. The tip of the tightening arm is connected to the tightening portion, and the tightening portion tightens the binding band. When the rear end of the tightening arm moves downward when
The toggle arm is configured to bend and move the cutter holder in the direction of the winding portion, thereby achieving the above object.

The operation of the present invention is as follows.

The binding band is guided and held on the inner surface of the open cover, and when the open cover is opened after the front end of the band body is passed through the locking hole of the binding band, the binding band is opened. Is released from the inner surface of the open cover so that when the front end of the binding band starts to be tightened downward by the tightening portion, the open cover is released and the release application releases the binding band. The binding object bound by the band moves to the open cover side, so that the binding object can be wound around the binding object without a gap by the binding band.

The cutting mechanism includes a cutter holder provided so as to be movable in the direction of the winding portion and having a fixed cutter.
A tightening arm pivotally attached to the support shaft; and a toggle arm connected to a rear end of the tightening arm. A tip of the tightening arm is connected to the tightening portion. When the tightening portion moves upward when tightening the binding band and the rear end of the tightening arm moves downward,
When the toggle arm is configured to bend and move the cutter holder in the direction of the winding portion, when the binding band is sufficiently tightened by the tightening portion,
When the tightening arm swings, the cutter holder moves to the through hole side, and a cutter cuts off an excess portion of the band body of the binding band. In this way, the mechanism can have a relatively simple configuration.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a binding device for a binding band according to the present invention.

The binding band 6 used in the binding device of the present invention
0, as shown in FIG. 12, has a head 64 having a locking hole 63 in which a locking portion is formed on the inner surface, and a band main body 61 extending from the head 64. A locking claw that is engaged with the locking portion when the locking member is inserted into the locking hole 63 is provided on the band main body 61. Such a binding band 60 can be easily formed by an injection mold.

As shown in FIGS. 1 to 3, the binding band binding device has a handy type external shape by a housing 70 formed by processing a synthetic resin, metal, or the like. The housing 70 has a grip part 71 that can be held by hand and a winding part 74 having a substantially U-shaped insertion space 72 provided at the tip of the housing 70.

More specifically, the binding band binding device is disposed around the space, and has a winding portion 74 that winds the binding band 60 around the object 66 to be bound and allows the band main body 61 to pass through the locking hole 63. A feeding part 75 for feeding the binding band 60 to the winding part 74; a tightening part 76 for tightening the binding band 60 wound around the binding target 66 by the winding part 74; and after the fastening of the binding band 60, A cutting mechanism 77 for cutting off an excess portion of the band main body 61, and a driving mechanism 78 for driving the driving member constituting the winding part 74, the feeding part 75, the tightening part 76 and the cutting mechanism 77 by the rotational force of the motor 1 I have it.

The grip 71 is provided with an operating lever 27, and the operating lever 27 is provided with a switch 79. The switch 79 turns on and off the motor 1 housed in the lower portion of the grip 71 and drives the drive mechanism 78.

The configuration of each of the following units will be sequentially described.

A worm gear 4 is fixed to a tip of a shaft 2 connected to the motor 1, and the worm gear 4 is a first worm gear.
It meshes with a first gear 81 fixed to a shaft (not shown). A second gear 82 is further fixed to the first shaft, and a third gear 83 meshing with the second gear 82 is fixed to a second shaft (not shown). Further, a fourth gear 84 meshing with the third gear 83 is fixed to a third shaft (not shown). A timing pulley 5 is fixed to the third shaft,
The timing belt 9 is stretched between the timing pulley 87 and the timing pulley 87 fixed to the fourth shaft 86. The first tightening gear 1 that forms the tightening portion 76 is provided on the fourth shaft 86.
7 is fixed, and the second tightening gear 16 meshing with the first tightening gear 17 is fixed to the fifth shaft 88.

At a position near the gear group, a feeding portion 7 is provided.
5 is a transfer rack guide 90.
Are arranged so as to make a linear motion along. The second gear 82 is meshed with the transfer rack 34 and the transfer rack 3
4 linearly moves along the transfer rack guide 90. At the upper end of the rack 34, a band pushing bar 40 is disposed so as to be movable in the longitudinal direction thereof.
The rack / bar connection fitting 42 is connected to the rear end of the “0” via a spring 41. The metal fitting 42 is a rack 34
Fixed on top. In the figure, reference numeral 91 denotes the transfer rack 3
4, one end of the return spring 91 is fixed to a screw, and the other end is connected to a wire 93. The wire 93 is connected to the transfer rack 34 via a first pulley 94 and a second pulley 95. And is connected to the rear end of the metal fitting 42 fixed to the bracket.

Before the start, the tip of the band pushing bar 40 is located near the head of the binding band 60,
After moving along the transfer path of the binding band 60 and feeding the head of the binding band 60 to the final position, the clutch of the drive mechanism is disengaged, and the elastic spring of the return spring 91 returns to the original position. I will be pulled back.

As shown in FIG. 2, the winding portion 74 includes a jaw 68 fixed to the tip of a housing 70, and a jaw 68
And a cover arm rotatably pivotally mounted on a shaft having a base mounted on the housing 70, and an open cover 23 rotatably mounted on a support shaft 69. A semicircular guide groove for guiding the band main body 61 is provided on the inner periphery of the kama arm 22. Kama arm 2
The second base is connected to a cam connected to the fifth shaft 88, and is rotated at a predetermined time by the driving mechanism.

As shown in FIGS. 4 and 5, the open cover 23 has a proximal end 23a and a distal end 23b which is connected to the proximal end 23a with the center thereof shifted. Is rotatably connected to the support shaft 69 so as to be rotatable. The connecting piece 101 connected to the lever 27 is connected to a hole provided at the center of the open cover 23. When the lever 27 is operated, the open cover 23 is opened and closed.

A guide groove 97 through which the binding band 60 passes is provided on the inner surface of the distal end 23 b of the open cover 23. Further, a center portion of a bar 96 which is obliquely disposed so as to cross the guide groove 97 is rotatably attached to a distal end portion 23 b of the open cover 23. The lower end of the bar 96 is disposed in the guide groove 97 with a gap,
The binding band 60 passing through the guide groove 97 can be guided by the bar 96. The compression spring 43 is disposed between the lower end of the bar 96 and the open cover 23, and urges the bar 96 to cross the guide groove 97 as shown in the figure, and is disposed in the guide groove 97. When pressed by the binding band 60, it is configured to move laterally from the guide groove 97 to release the guide of the binding band 60. An inclined notch 96a is formed at the lower end of the bar 96, and the outer edge of the notch 96a substantially coincides with the side edge of the guide groove 97 as shown in FIG.

Accordingly, the binding band 60 is guided along the guide groove 97 by the space formed between the bar 96 and the guide groove 97.
6 acts on the inclined side edge 96a of the bar 96, the bar 96 retreats from the guide groove 97 against the urging force of the spring 43, and the binding band 60 is release.

Below the open cover 23, a through hole 98 through which the band body 61 can pass is formed, and below the through hole 98, the above-mentioned pair of tightening gears 16 and 17 are arranged. In addition, a binding band 60 is provided at the tip end side of the through hole 98.
Is provided with a projection 99 that can lock the head 64.

As shown in FIGS. 6 and 7, a cutter holder 45 having a plurality of rollers 46 is mounted on the housing 7.
The holder 47 is fixed to the upper end of the holder 45 so as to be movable in the direction of the winding part 74 in the inside of the holder 45.
A tightening arm 25 is provided on the side of the holder 45. The tightening arm 25 is pivotally attached to a support shaft 69, a tip end of the tightening arm 25 is pivotally attached to a shaft of the tightening gear 16, and a rear end thereof is one end of the toggle arm 26. It is connected to. The toggle arm 26 is disposed on the rear end side of the cutter holder 45. When the toggle arm 26 is bent, the toggle arm 26 pushes the rear end of the cutter holder 45 in the direction of the winding portion 74. 45 moves in the direction of the winding portion 74. That is, since the tightening arm 25 is connected to the fourth shaft of the tightening gear 16, when the tightening gears 16 and 17 move upward when tightening the binding band 60, the tightening arm 25 is connected to the fourth shaft. In order to move the rear end downward like a seesaw, the toggle arm 26 is bent and the cutter holder 45 is moved. The tip of the cutter 47 is located in the through hole 98 described above. The binding band 60 passing through the through hole 98 is cut by the cutter 47 from the side.

Next, the operation of the binding band binding apparatus of the present invention will be described with reference to the drawings.

The binding band 60 is set at a predetermined position, and then, as shown in FIG. 7, the operating lever 27 is operated to open the open cover 23, and a binding object 66 such as a wire harness is inserted into the space 72 thereof. Switch on. As a result, the motor 1 starts, and the worm gear 4,
The first gear 81 rotates, the transfer rack 34 moves forward, and the binding band 60 is sent forward. Unity band 60
Reaches the winding portion 74, as shown in FIG. 8, the head 64 of the binding band 60 hits the projection 99 at the portion of the through-hole 98 and is locked. The main body 61 is fed while being guided by the guide groove 97, and the tip of the band main body 61 is inserted into the locking hole 63. After the binding band 60 forms a loop in this way, as shown in FIG.
The binding target object 66 is sandwiched between the open cover 23 and sent to the pair of tightening gears 16 and 17 through the through hole 98 of the distal end of the binding band 60. Then, the open cover 23 is released at the same time as the tip of the binding band 60 starts to be tightened downward by the pair of tightening gears 16 and 17 (FIG. 10). When the open cover 23 is released, the binding band 6
0 does not move with the open cover 23. By releasing the open cover 23, the binding target object 66 bound by the binding band 60 can be slightly wound around the binding target object 66 by the binding band 60 to move slightly to the open cover 23 side. become able to. Binding band 6 by tightening gears 16 and 17
When the tightening of 0 is sufficiently performed, as shown in FIG.
When the tightening arm 25 swings, the cutter holder 45 moves toward the through hole 98, and the cutter 47 cuts off an excess portion of the band main body 61. Thereafter, when the operating lever 27 is operated to open the open cover 23, the clutch mechanism operates and the cutter holder 45 and the latch return to the original positions.

The binding band 60 may be an embodiment in which the tip of the head 64 of the band body 61 is connected to the tip of the band body 61 of another binding band. In this case, a mechanism is provided for cutting between the binding bands arranged in front and behind.

[0030]

According to the present invention, the following effects can be obtained.

After the binding band forms a loop, the kama arm is driven, the object to be bound is sandwiched between the open cover and the tip of the binding band is sent to the pair of tightening gears.
The open cover is released at the same time as the tip of the binding band starts to be tightened downward by the pair of fastening gears, so that the binding object bound by the binding band is bound by the binding band to move to the open cover side. It can be wound around the object without any gap.

When the binding band is sufficiently tightened by the tightening gear, the cutter arm moves to the through-hole side by swinging the tightening arm, and the excess portion of the band body of the binding band is cut by the cutter. Therefore, the structure and mechanism are simplified, and the device can be manufactured at low cost. In addition, since the structure and the driving mechanism are relatively simple, it is possible to provide a binding device for a binding band with less failure.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a binding device of a binding band of the present invention.

FIG. 2 is a cross-sectional view of the binding device shown in FIG.

FIG. 3 is a plan sectional view of the binding device shown in FIG. 1;

FIG. 4 is a front view of an open cover portion of the binding device shown in FIG. 1;

FIG. 5 is a rear view of the open cover shown in FIG. 4;

FIG. 6 is a front view of a cutter holder portion of the binding device shown in FIG. 1;

7 is an operation explanatory view of the binding device shown in FIG. 1 and shows a state in which a binding object is arranged between a jaw and an open cover.

8 is an operation explanatory view of the binding device shown in FIG. 1, showing a state in which a binding object is held between a jaw and an open cover, and a loop is formed by a binding band. FIG.

9 is an operation explanatory view of the binding device shown in FIG. 1, showing a state in which the distal end portion of the band main body is tightened between the tightening gears.

10 is an operation explanatory view of the binding device shown in FIG. 1,
This shows a state where the open cover is opened.

11 is an operation explanatory view of the binding device shown in FIG. 1,
The state where the surplus part of the band part main body is cut by the cutter is shown.

FIG. 12 is a front view of a binding belt portion.

FIG. 13 is a front view showing a state in which a binding object is bound by a binding band using a conventional device.

[Explanation of symbols]

 Reference Signs List 1 motor 2 shaft 4 worm gear 9 timing belt 16 tightening gear 17 tightening gear 22 kama arm 23 open cover 25 tightening arm 26 toggle arm 27 operating lever 34 rack 45 cutter holder 47 cutter

Claims (3)

[Claims] 1. A head having a locking portion having a locking hole formed on an inner surface thereof, and a band body extending from the head.
A locking claw, which is engaged with the locking portion when the band body is inserted into the locking hole, is a binding band binding device provided on the band body, and the binding band is attached to an outer periphery of a binding target object. A winding portion for winding the leading end of the band main body through the locking hole, a feeding portion for feeding the binding band into the winding portion, and tightening the binding band wound around the binding object by the winding portion A tightening portion, a cutting mechanism for cutting off an excess portion of the band main body after the fastening of the binding band is completed, and a driving mechanism for driving the winding portion, the feeding portion, the tightening portion, and the cutting mechanism. The turning part has a kama arm having a base pivotally attached thereto and an open cover pivotally attached opposite to the kama arm, and a binding band is provided on an inner surface of the open cover. To guide and hold, and When opening the open cover after passing the distal end portion of the band body engagement holes of the binding band is the device for binding the binding band having means for releasing the binding band from the inner surface of the main cover. 2. The means for holding and releasing the binding band on the inner surface of the open cover is a bar provided on the inner surface of the open cover, the bar crossing a guide groove formed on the inner surface of the open cover. And a rotatable pivotally attached to the open cover, a space is formed between the bar and the guide groove to guide the binding band, and a pressure of a predetermined or more by the binding band is applied to the bar. 2. The binding device according to claim 1, wherein the bar is urged by an urging means such that the bar is retracted from the guide groove when actuated. 3. A head having a locking hole in which a locking portion is formed on an inner surface, and a band body extending from the head.
A locking claw, which is engaged with the locking portion when the band body is inserted into the locking hole, is a binding band binding device provided on the band body, and the binding band is attached to an outer periphery of a binding target object. A winding portion for winding the leading end of the band main body through the locking hole, a feeding portion for feeding the binding band into the winding portion, and tightening the binding band wound around the binding object by the winding portion A tightening portion, a cutting mechanism for cutting off an excess portion of the band main body after the fastening of the binding band is completed, and a driving mechanism for driving the winding portion, the feeding portion, the tightening portion, and the cutting mechanism. The mechanism is connected to a cutter holder, which is disposed so as to be movable in the direction of the winding section and to which the cutter is fixed, a tightening arm pivotally attached to a support shaft, and a rear end of the tightening arm. With a toggle arm A tip end of the tightening arm is connected to the tightening portion, and the tightening portion moves upward when tightening the binding band and the toggle arm moves when the rear end portion of the tightening arm moves downward. A binding device for a binding band configured to bend and move the cutter holder in the direction of the winding portion.