JPH0755693B2 - Tape binding device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape binding device that automatically performs an operation of binding a bundle of lead wires such as a wire harness of an automobile with an adhesive tape. is there.

[Problems to be solved with conventional technology]

An example of such a tape binding device is Japanese Patent Laid-Open No. 49-33.
The one disclosed in Japanese Patent No. 796 is known. In this tape binding device, the action of winding the adhesive tape on the object to be bound and the raising and lowering of the cutter for cutting the tape are interlocked, so it is necessary to wind the tape while the cutter is in the lowered state. For this reason, the number of windings of the tape is about 2 to 3 at most, and the number of windings is constant, so that it is inconvenient to change the number of times arbitrarily.

Further, as another example, there is one disclosed in Japanese Patent Laid-Open No. 60-23111.
It can only be wound three times. Further, it is formed by bundling with a non-adhesive tape and then welding and cutting with ultrasonic waves, and cannot be used as it is in a device for bundling with an adhesive tape.

Further, there is one disclosed in Japanese Patent Publication No. 61-33789, but in this case, it is inconvenient to use because it is not equipped with a device for automatically cutting the tape and automatically processing the cut end portion.

Therefore, an object of the present invention is to provide a tape binding device that can automatically wind an adhesive tape twice or more around an object to be bound and can automatically cut the tape.

[Means for Solving the Problems]

In order to solve the above problems, the present invention provides a rotary claw having a recess for receiving an object to be bound, a tape mounting arm that rotates around the rotary claw to supply an adhesive tape, a cutting means for the tape, A tape binding device comprising a transmission device for transmitting a driving force of a driving device to the rotary claw, a tape mounting arm and a cutting device, an operating device for inserting and cutting the driving device, and a frame having these mounted therein, the tape mounting arm and the cutting device. Is provided with a support plate rotatably fitted to the rotary claw, and the transmission device transmits the rotational force to the drive claw via a drive side transmission device that directly transmits the rotational force to the rotary claw and a fixed position engagement clutch. A driven side transmission device for transmitting, a drive disc and a driven disc are respectively provided in the drive side transmission device and the driven side transmission device, and the cutting means is a tape on the outer peripheral surface of the rotating claw. The frame is provided with locking means for urging it toward the excessive position and holding it in a non-operating position on the support plate, and unlocking means for unlocking the locking means on the rotary claw. The drive-side stopper and the driven-side stopper that engage and disengage with the notches provided on the outer circumference of the drive disc and the driven disc are separately attached and detached, and the drive-side stopper is removed from the notch of the drive disc. When this happens, move this stopper in the tangential direction of the drive disk,
A spring that works to close the start switch of the drive device is attached, and the operating means is attached to the driven side stopper, and when the operating means is set to the start position, the driven side stopper causes the notch of the driven disk to cut out. So as not to come off
Moreover, when the driven side stopper is detached from the notch of the driven disc, the driven side stopper is accompanied and detached from the driven side disc, and the driven side stopper is driven while the driven side stopper is detached. A restricting piece for restricting engagement with the disk is provided, and when the operating means is in the release position, the driven side stopper stops the driven disk and the drive side stopper stops after the drive disk makes one rotation. It has a structure as described above.

[Action]

Since the present invention has the above-mentioned configuration, the tip end of the roll-wound tape attached to the tape attachment arm of the support plate hangs down in the front part of the recess of the rotary claw with the adhesive surface facing outward. , When the tip of the tape is pressed against the object to be bound into the recess and then the operating means is moved to the start position, the stoppers disengage from the drive disk and the driven disk, and at the same time the drive device starts and the drive disk The driven disk starts rotating while being connected with the clutch.

When both discs start rotating in unison in this way, the rotary claw and the supporting plate also rotate together, and the adhesive tape is wrapped around the outside of the object to be bound at a certain position.

Next, when the operating means is moved to the stop position, the driven-side stopper first engages the driven disc and stops it together with the support plate, but the drive disc continues to rotate together with the rotary claw, and the tape cutting means is moved along the way. The tape is cut at a proper place on the outer circumference of the rotary claw, and thereafter, the rotary claw continues to rotate, and the drive side stopper also works at the position where the recess is facing forward to stop the drive disk and stop the drive device. .

〔Example〕

In the embodiment shown in the drawings, 1 is a pair of left and right frames having a handle 2 fixed to the lower rear side thereof, and a circular recess 3 having an opening at the front end is provided at the front end of the frame 1.

Reference numeral 4 denotes a rotary claw provided with a recess 5 extending from the outer periphery of a part of the cylinder to the center and both ends thereof, the both ends of which are the aforementioned frame 1
It is rotatably attached to the recess 3.

Disc-shaped side plates 6 are provided on both sides of the rotary claw 4 as shown in FIG.
Are fixed concentrically. A support plate 7 is rotatably attached to the outside of each of the side plates 6.

A tape mounting arm 8 is integrally provided on one support plate 7,
On this arm, a core 12 made by rolling an adhesive tape 11 is used.
Attach detachably.

Also, a pair of round pins 13 and 14 are fixed on both sides of the outer end of the recess 5 of the rotary claw 4, and the round pin 13 that is on the upper side when the recess 5 faces forward is as shown in FIG. A hardened roller
Mount 15 rotatably.

16 is a cutting means, which is a pin fixed between the right and left sides and the support plate 7
It has a cutter 19 rotatably attached by 17
The adhesive tape 11 on the roller 15 is cut by hitting 18 against the roller 15 by the force of the spring 20 shown in FIG.

Reference numeral 21 denotes a locking piece of the cutter 19, which is rotatably attached between the left and right support plates 7 by a pin 22. The engaging piece 21 is bifurcated, and the piece 23 on the cutter side is provided with a notch 25 that engages with a projection 24 on the rear portion of the cutter 19 to make the cutter 19 in an inactive position, and the other piece 26 is the rotary claw. 4. Projection piece 27 on the outer periphery of the side plate 6 integrated with 4
The engaging piece 21 is provided with a spring 28 as shown in FIG. 5 to apply a rotational force such that the piece 23 is pressed against the projection 24 of the cutter 19.

Further, a protrusion 29 is provided inside the cutter 19, and after the tape 11 is cut, the cutter 15 is pushed out by the roller 15 so that the protrusion 24
Is engaged with the notch 25 of the locking piece 21.

Reference numeral 31 in FIG. 4 is a drive device fixed to the outside of the frame 1.
A motor with a reducer is used, and its shaft 32 is connected to a drive shaft 33 rotatably installed between the frames 1.

A drive disk 34 is fixed to the drive shaft 33, and a driven disk 35 is rotatably attached.

The driven disk 35 is on the side having the tape mounting arm 8, and a fixed position coupling clutch 38 is provided between the drive disk 34 and the driven disk 35 so that both disks 34, 35 can be connected and separated.

An example of the clutch 38 will be described with reference to FIG.
A ball receiver 39 fixed to the side surface of the drive disk 34, a ball 41 fitted in the receiver so that it can be retracted and retracted, and crimped to the side surface of the driven disk 35 by a spring 40, and a shallow ball provided on the side surface of the driven disk 35. It is composed of a receiving recess 42.

45 in FIGS. 1 and 4 is a drive shaft 33 on the outside of the side plate 1.
The gear 45 is fixed to the gear 45, and the gear 45 meshes with the gear 46 rotatably attached to the outside of the frame 1 on this side. Further, as shown in FIG. 1, the gear 46 meshes with a pair of pinion gears 47 rotatably mounted on the upper and lower sides of the front side of the frame 1.

Reference numeral 48 denotes a gear fixed to the rotary claw 4 coaxially with the outside of the frame 1, and the gear 48 meshes with the pair of gears 47. The gear 48 has a notch that matches the opening 5 of the rotary pawl 4.
Since it has a toothless shape with 49, it is made to mesh with two gears 47 so as to be surely meshed with any one of the gears 47.

Further, the diameters of the gears 45 and 48 are the same, and the drive disk 34 and the rotary claw 4 are always rotated at the same rotational speed in opposite directions. These gears 45 to 48 form the “drive side transmission device” referred to in the claims.

As shown in FIG. 4, a gear 51 located inside the frame 1 on this side is fixed to the outside of the driven disk 35.
Is meshed with a gear 52 rotatably mounted inside the frame 1, and this gear 52 is meshed with a pair of pinion gears 53 rotatably mounted vertically above and below the front portion of the frame 1. The pinion gear of the support plate 7 is The gear 54 fixed to the outside is engaged.

Since the gear 54 also has a notch like the gear 48,
It is meshed with a gear 53, and the gears 51, 54
Has the same diameter so that the driven disk 35 and the support plate 7 rotate in the opposite directions at the same rotation speed. These gears 51-54
It constitutes a "driven side transmission device" in the claims.

Stoppers 57 and 58 are arranged below the drive disk 34 and the driven disk 35, respectively. The stoppers 57 and 58 are lever-like members swinging around a shaft 59 provided between the frames 1, and the tips of the stoppers 57 and 58 have notches 61 provided on the outer circumferences of the disks 34 and 35. , 62 are provided with claws 63, 64 for engaging and disengaging.

The stopper 57 has a long hole 65 as shown in FIG. 6 fitted on a shaft 59 and can be rotated and slid, but the stopper 58 has a round hole 66 as a shaft.
It is fitted on 59 and can only be rotated.

Further, the stopper 58 is provided with a limiting piece 68 as shown in FIG.
The stopper 57 is slidably engaged with a groove 69 provided outside the limiting piece 68 to limit the movement of the stopper 57.

2 and 3, 71 is a limit switch fixed to the frame 1 so as to be located below the stopper 57, and the stopper 57 is pulled toward the limit switch 71 and the direction of the disk 34. By providing a spring 74 for applying a rotational force to the limit switch 71, when the stopper 57 moves in the direction of the limit switch 71, the action piece 72 of the switch 71 is pushed at its rear end to start the driving means 31.

The operation lever 73 is fixed to the stopper 58, and the outer end portion of the lever 73 is projected from the upper front side of the handle 2 to
A spring 75 shown in the figure applies a rotational force in the direction of the arrow in FIG. 2 to the lever 73 and the stopper 58.

Although not shown, a brush or the like for rubbing the tape against the object to be bound is provided in the opening 5 of the rotary claw 4.

The operation will be described below. First, as shown in FIGS. 2 and 9 (a), the recess 5 of the rotary claw 4 faces forward and the tip a of the adhesive tape 11 faces the adhesive surface. 4 is hung down in front of the recess 5 and the bundled object 70 such as a wire harness is pressed against the tape 11 between the recesses 5 into the rotary claw 8 as shown in FIG. 9 (b). Push in.

In this state, when the operating lever 73 is pushed as shown by the arrow in FIG. 1, the stopper 58 integral with the lever 73 rotates together with the adjacent stopper 57 about the shaft 59 in the direction of the arrow in FIG. The nails 63 and 64 at the tip of the lever are notches 61 and 62 of the disks 34 and 35, respectively.
Get out of.

At the same time when the claw 63 is disengaged from the notch 61, the stopper 57 moves toward the limit switch 71 by the action of the spring 74 and pushes the action piece 72, so that the drive device 31 starts.

Drive disk with drive shaft 33 by starting drive device 31
34 begins to rotate in the direction of the arrow in Fig. 2.

When the drive disc 34 starts to rotate, the clutch 38 is attached to the disc 34.
The driven disk 35 that is connected via the rotary disk also starts to rotate, and the rotary claw 4 and the support plate 7 that are interlocked with both disks via the gear train are integrated in the direction of the arrow in FIG. 9 (b). Start spinning.

If the object 70 to be bound is held so as not to rotate even when the rotary claw 4 starts to rotate, the rotary claw 4 rotates together with the support plate 7 as shown in FIGS. 70 on tape
Wrap around 11. As described above, when the operating lever 73 is pushed and the disks 34 and 35 start to rotate and the lever 73 is released by the time of one rotation, the claws 63 of the stoppers 57 and 58,
The reference numeral 64 is in contact with the outer circumferences of the disks 34 and 35 and is sliding.

In this way, when both discs 34 and 35 rotate from the beginning to nearly one revolution, the notches 61 and 62 that are aligned horizontally come to the position of the claw 63,
At this time, since the portion of the claw 64 is still in contact with the outer periphery of the disc 35 and the limiting piece 68 prevents the stopper 57 from rotating in the direction of the disc 34, the claw 63 cannot engage with the notch 61. .

When the disks 34, 35 further rotate slightly and the notch 62 comes to the position of the claw 64, the claw 64 engages with the notch 62 by the action of the spring 75 to stop the rotation of the driven disk 35 and fix it at a fixed position. .

However, as the drive disc 34 continues to rotate, the balls 41 of the clutch 38 disengage from the recess 42 of the disc 35.

When the driven disk 35 stops as described above, the support plate 7 also moves to the second position.
Although it stops at a fixed position in the figure and the cutter 19 and the like attached thereto also stop, the cutter 19 is at the position shown in FIG. 2 and the rotary claw 4 is at the position shown in FIG. 9 (e).

Further, the rotary claw 4 rotates, and the projecting piece 27 provided on the side plate 6 scrapes the piece 26 of the locking piece 21 in the state shown in FIG. 2 to engage the notch 25 of the piece 23 with the projection 24 of the cutter 19. Since it will be released, the cutter
19 is rotated by the action of the spring 20, and as shown in FIGS. 3 and 9 (g), the tape on the outer circumference of the roller 15 that has reached this position.
Hit the cutting edge 18 to 11 and cut.

When the tape 11 is cut by the cutter 19 as described above, since the notch 61 of the drive disk 34 is at the position shown in FIG. 3, the drive disk 34 and the rotary claw 4 are further rotated to cut the tape.
After winding the rear end b of 11 around the object to be bound 70, immediately before the position shown in FIG. 9 (h), the stopper 57 is inserted into the notch 61 of the disk 34.
The claw 63 engages and the stopper 57 is slightly moved to stop at the position where the rear end of the elongated hole 65 hits the shaft 59, and the state shown in FIGS. 7 and 9 (h) is obtained.

That is, when the operating lever 73 is pushed to start the driving means 31 and then the lever 73 is immediately returned to its original position, the driven disk 35 is set to 1
It rotates and stops, and the drive disk 34 rotates twice and then stops.

If you continue to press the operating lever 73, both stoppers 57,
The claws 63 and 64 of 58 remain disengaged from the notches 61 and 62 of the discs 34 and 35, the discs 34 and 35 continue to rotate, and the tape 11 is wound on the outside of the object to be bound 70 many times. When the pressure of 73 is released, the tape 11 is cut as described above, and then the cut tape 11 is cut.
After winding the rear end portion (b) around the object to be bound 70, the operation is stopped.

When stopped in this way, the tape
The to-be-bound object 70 bound at 11 is located in the recess 5, and the tip end a of the remaining tape 11 hangs down from the front of the recess 5.

When the rotary claw 4 is pulled backward together with the frame 1 in this state, that is, in the direction of the arrow in FIG. 9 (h), the bundled object 70 is taken out from the recess 5 with the tip portion a removed forward. As shown in FIG. 7A, the next bundled object is ready to be received.

〔The invention's effect〕

In the present invention, since the rotary claw for winding the adhesive tape around the object to be bound and the tape mounting arm rotate integrally as described above, the tape can be wound around the object to be bound twice or more times. .

Also, when the operation means is set to the position where the tape winding is stopped,
First, the support plate stops, then the rotation of the rotary pawl causes the tape cutting means attached to the support plate to cut the tape, and then the rotary pawl continues to rotate to completely remove the trailing end of the tape. After the winding process, it is stopped with the recess in front so that the next binding operation can be started immediately.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the device of the present invention, FIG.
FIG. 3 is a partially cutaway vertical side view showing the above states,
FIG. 5 is a partially cutaway plan view, FIG. 5 is a partially cutaway plan view of a support plate and a tape cutting means, FIG. 6 is an enlarged perspective view of a stopper, and FIGS. 7 and 8 show a stopper and a drive disk. FIGS. 9A to 9H are enlarged side views showing each state, and FIGS. 9A to 9H are partially longitudinal side views showing each step in the tape winding state. 1 ... Frame, 4 ... Rotating claw, 5 ... Recess, 7 ... Support plate, 8 ... Tape mounting arm, 11 ... Adhesive tape, 31 ... Drive device, 34 ... Drive disk, 35 ...... Driven disc, 57 …… Drive side stopper, 58 …… Driven side stopper, 61, 62
…… Notch, 68 …… Restricting piece, 70 …… Bundling object, 74,75 …… Spring, B …… A tip of adhesive tape, B …… Rear end of adhesive tape,

Claims (1)

[Claims] 1. A rotary claw having a recess for receiving an object to be bound, a tape mounting arm that rotates around the rotary claw to supply an adhesive tape, a cutting means for the tape, the rotary claw and the tape mounting arm, and A tape bundling device comprising a transmission device for transmitting a driving force of a driving device to a cutting device, an operating device for inserting and cutting the driving device, and a frame on which the tape mounting arm and the cutting device are rotatably fitted to a rotary claw. By providing a combined support plate, the transmission device includes a drive-side transmission device that directly transmits the rotational force to the rotary claw and a driven-side transmission device that transmits the rotational force to the support plate via a fixed-position engagement clutch. The drive-side transmission device and the driven-side transmission device are respectively provided with a drive disk and a driven disk, and the cutting means is urged toward the tape passing position on the outer peripheral surface of the rotary claw. In addition, locking means for holding it in the non-operating position is provided on the support plate, and locking release means for unlocking the locking means is provided on the rotary claw, respectively, and the frame is provided with a drive disk and a driven disk. A drive-side stopper and a driven-side stopper that engage and disengage with the notches provided on the outer periphery of the plate are attached so that they can be separately engaged and disengaged. A spring is attached to move the plate in the tangential direction to close the start switch of the drive unit, and the operating means is attached to the driven-side stopper, and the operating means is set to the start position. The driven-side stopper is designed so as not to come out of the notch in the driven disk, and when the driven-side stopper is disengaged from the notch in the driven disk, the driven-side stopper is also allowed to accompany it so that the driven-side stopper is disengaged from the driven-side disk. , The driven side stopper stops the driven disk when the operating means is in the release position, by providing a limiting piece for restricting the driving side stopper from engaging with the driving side disk while the driven side stopper is disengaged. The tape binding device is characterized in that the drive-side stopper is stopped after the drive disk makes one rotation.