JPH024010Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a tape binding machine that fixes a tape reel containing wound tape during tightening of the binding operation to prevent the tape from sagging, and also to prevent the tape from becoming loose. This invention relates to a brake device for a tape reel that allows the tape to be freely fed out from the tape reel when it is wrapped around a bundle.

[Conventional technology]

In the conventional tape binding machine as shown in Japanese Patent Publication No. 58-11608, the tape fed out from the tape reel during binding is prevented from unnecessarily sagging, and the tape is tightly wrapped around the object to be bound. A tape tensioning mechanism was built in to tighten it so that it could be tightened.

That is, when winding tape around the object to be bound in conjunction with the depressing operation of the binding operation handle, first, the tape reel is put into the tape feeding rotation state to feed the tape, and just before the wrapping is finished, the tape reel is reversed. It operates to pull back the tape.

Therefore, a complicated structure is required to switch and operate the tape reel between a forward rotation state and a reverse rotation state with a single stroke of the operating handle. Further, the brake mechanism in the conventional apparatus described above uses a spring force to press a friction plate against a rotary plate rotationally connected to a tape reel.

[Problem that the invention attempts to solve]

The present invention was devised in view of the above-mentioned conventional situation, and is designed to apply a brake to the tape reel at the initial stage of operation when the operation handle is pressed down, and to release the brake before reaching the end of operation of the handle. The purpose of the present invention is to provide a braking device for a tape reel, in which the conventional braking mechanism uses a spring force to press against a rotating disc friction plate that is rotatably connected to the tape reel, so the braking force is weak. Therefore, it is extremely difficult to adjust the spring force to adjust the tightening force.

Therefore, in the present invention, friction plates are arranged on both sides of a rotating disk that is rotationally connected to a tape reel so as to be integrated with the rotating disk in the rotational direction, and further, friction plates are provided from both sides of the friction plate through the friction plates. By sandwiching the friction plates of the rotating disk,
It is intended that a strong braking force can be obtained even with a weak spring force, so that the braking force can be easily adjusted.

[Means for solving problems]

The present invention provides a brake member consisting of a rotating disk rotatably connected to a tape reel shaft and having friction members fixed on both sides, a pair of friction members disposed such that the rotating disk can be pressed and clamped from both sides, and this brake member. The apparatus includes a cam means that moves toward and away from the rotating disk, and a binding arm that first applies the brake to the brake member and then releases the brake through the cam means.

[Effect]

In the present invention, when the operating handle is pressed down, the cam connecting pawl provided on the handle rotates the movable cam plate, and when the brake member clamps and fixes the rotating disc from both sides, the disc is engaged with the disc. The reel shaft is fixed and rotation of the tape reel is prevented.

From this state, when the operation handle is pressed down further, the cam release plate provided on the handle reverses the movable cam plate and releases the clamping force of the rotating disk by the brake member, thereby releasing the tape reel. Rotation can be made free.

〔Example〕

Hereinafter, an embodiment of a tape binding machine to which the present invention is applied will be described in detail with reference to FIGS. 1 to 27. 1 and 2 show a partially cut away side view of the binding device 1. FIG. This binding device 1 has a tape reel 3 serving as a tape supply mechanism on a base 2 having a seating portion 2A on the lower surface, and a tape feeding and tightening mechanism 4 for feeding and tightening the tape is associated with this reel 3. It is provided. The brake device of the present invention is incorporated into the four parts of the mechanism. Further, a base-side tape adhesion mechanism 5A is provided on the right side of the base 2 in FIG. 1. A binding arm 6 serving as an operation handle that is pivotally operated by an operator is provided between the tape feeding and tightening mechanism 4 and the base-side tape adhesion mechanism 5A.

Further, a tape guide fixing arm 8 is installed upright alongside a plate-shaped support frame 7 that constitutes a part of the tape feeding and tightening mechanism 4. An intermediate guide roller 8a is pivotally supported at the upper end of this tape guide fixed arm 8 for guiding the running of the tape. The tape guide fixing arm 8 is provided to eliminate wasteful unraveling of the adhesive tape 35, and when the binding arm 6 stands still at the upper end of operation as shown in FIG. When the adhesive tape 35 is pushed down and stationary at the lower end of operation as shown in Figure 2, the amount of adhesive tape 35 that is fed out hardly changes, and even when the binding arm 6 is pivoted, the length of the adhesive tape 35 that is fed out changes. The intermediate guide roller 8 is placed at a position where the amount is hardly affected.
A is arranged. Further, at a lower position of the binding arm 6, there is provided a pedestal 10 formed so as to be engaged with and supported by the locking pin 9 of the support frame 7 and on which the object to be bound 27 is placed.

The binding arm 6 is composed of, for example, two left and right arm side plates 6a and 6b, and its base end is pivotally supported on a support frame 7 by a pivot 6c, and in normal times it is rotated in the upright direction by a pullback spring 6d. energized.

Furthermore, a tape adhesion mechanism 5B on the binding arm side is provided below the tip of the binding arm 6. A tape adhesion mechanism 5 is constituted by this tape adhesion mechanism 5B and the tape adhesion mechanism 5A on the base side.

The details of the brake mechanism of the reel 3 constituting the tape supply mechanism are shown in FIGS. 1, 2, and 3.
Explaining with reference to FIG. 3 and FIGS. 8 to 10, the reel 3 of this tape supply mechanism is mounted on a support frame 7 mounted on the base 2 with a bearing 1.
1, and a wheel gear 1 rigidly connected to the tape wheel 12 via a wheel shaft 14.
It consists of 3.

The tape reel 3 serving as the tape supply mechanism is driven by a tape feeding and tightening mechanism 4. That is, the tape feeding and tightening mechanism 4 meshes with the wheel gear 13 and can freely approach and separate from the wheel gear 25, which has friction members 24, 24 made of rubber or the like fixed to both sides, so as to clamp it from both sides. Rubber pads 25A and 25B for brakes are provided. That is, a fixed cam plate 19 having a cam projection (not shown) on the surface 191 is fitted around the base 181 of the fixed shaft 18 erected on the support frame 7 and fixed to the support frame 7 . A movable cam plate 20 which selectively contacts the fixed cam plate 19 and has a cam protrusion (not shown) is freely rotatably supported by the fixed shaft 18.

As is clear from FIG. 1, the movable cam plate 20 has a deformed shape that is bent into a U-shape.
is pivoted. Further, a claw-like projection 36 is provided to protrude from the upper right side portion of the cam plate 20 (see FIGS. 1 and 8 to 10).

Further, the fixed shaft 18 into which the movable cam plate 20 is fitted has an outer surface with reinforcing plates 251A and 251A, respectively.
Further, two brake members 25A and 25B such as rubber wheel plates reinforced by the brake member 51B are rotatably inserted and sandwiched from both sides of the rotating disk 251 formed by the wheel gear 25 and the friction members 24 and 24. ing. These brake members 25
A and 25B can freely rotate independently of each other, and can also move independently of each other in the axial direction of the fixed shaft 18. As the movable cam plate 20 rotates, the rotating disk 251 moves in the axial direction.
It is designed to clamp and release the crimping.

A compression coil spring 26 is further attached to the fixed shaft 18, and the strength of the compression coil spring 26 is adjusted by a wing nut 16a screwed onto the tip 18b of the fixed shaft 18. This compression coil spring 26 is connected to the rotating disk 2
51 to press the brake members 25A, 25B. Further, a cam release plate 29 is provided protruding from the base end of the binding arm 6, and a cam connection claw 30 that engages with a claw-like protrusion 36 of the movable cam plate 20 is attached to a pin 31 at the base of the cam release plate 29.
It is arranged so that it can pivot. This cam connecting claw 30 has a substantially L-shape, and engages with a claw-like protrusion 36 of the movable cam plate 20 at one end 30a.
The other end 30b engages with an engaging portion 32 formed upright on the cam release plate 29. A spring retaining plate 33 is bent at one end 30a of the cam connecting claw 30, and a torsion coil spring 34 is arranged to bias the cam connecting claw 30 in the counterclockwise direction in FIG. 1 about the pin 31. ing.

Therefore, when the adhesive tape 35 is fed out, the cam projections on the movable cam plate 20 are matched with the cam recesses of the fixed cam plate 19, and the rotating disc 2
51 and the brake members 25A, 25B are not fixed by pressure contact. That is, the tape wheel 12 freely rotates due to the tension when drawing out the adhesive tape.

Next, when the binding arm 6 is pushed down, the cam connecting claw 30 engages with the claw-like protrusion 36 from the state shown in FIG. 8 as shown in FIG. 9, and the movable cam plate 2
0 in the counterclockwise direction in the figure. As a result, the cam protrusion of the movable cam plate 20 is connected to the fixed cam plate 19.
The cam leaves the cam recess and rides on the upper surface of the cam protrusion of the fixed cam plate 19. As a result, the movable cam plate 20 presses the brake members 25A and 25B to frictionally press and clamp the rotary disk 251 including the wheel gear 25 from both sides. At this time, at the same time, the claw-like protrusion 36 of the movable cam plate 20 and the clutch connecting claw 30
The relationship with is canceled.

Next, when the binding arm 6 is further moved down, the first
As shown in Figure 0, the cam release plate 29 is connected to the movable cam plate 2.
0 guide roller 21 from the right side in the figure,
The movable cam plate 20 is rotated clockwise around the fixed shaft 18 as is clear from FIG. .

When the cam projections are completely fitted into the cam recesses, the brake members 25A, 25B and the rotating disc 25
The frictional contact state with the tape wheel 12, that is, the brake operating state is released, and the tape wheel 12 becomes free.

The tape wheel 12 is already in a free state while the binding arm 6 returns upward from the state shown in FIG. 2 to the state shown in FIG. Determined amount of adhesive tape 3 required for next binding preparation
Since the adhesive tape 5 has already been sent out, the adhesive tape 35 will not be sent out any further when the binding arm 6 returns to its upward movement.

Also, the base side tape adhesion mechanism 5A will be explained here. This base side tape adhesion mechanism 5A
Plate-shaped side stands 37 and 38 are provided on both sides of the base 2 and are erected by bolts 39. A tape bonding mechanism 59 is provided between these side stands 37 and 38 and at the upper part of the front end.

That is, this mechanism 59 functions to radially overlap and bond each end portion 35A, 35B of the adhesive tape 35 that is looped around the object 27 to be bound. A pair of slider plates 60, 60 are used as tape end support members that support the overlapping portion of each tape end of the adhesive tape 35 from the inner diameter side of the adhesive tape 35, and the slider plates 60, 60 are rolled into pressure contact with the slider plates 60, 60. It has a pair of rollers 662, 662 for pressing and adhering the respective tape ends 35A, 35B.

That is, to explain this tape bonding mechanism 59 in more detail, first, as is clear from FIG.
A rotating shaft 63 is fitted into the rotating shaft 2 . A sprocket 64 is disposed near one end of the rotating shaft 63, and a rotational force transmitting chain 65, which will be described later, is wound around the rotating shaft 63.

A bonding unit 66 whose central portion is pivotally supported by the rotation shaft 63 is provided.
As is clear from FIGS. 1, 5, 6, and 22, this unit 66 has link pieces 664 that are swingably connected to each end of the slider plate 60 by pivot pins 663. , rollers 662 are each pivotally supported at the tips of the link pieces 664. An engaging protrusion 665 is protruded from the base end of the link piece 664 and engages with an engaging pin 666 erected on the support plate 661, thereby locking the pivot pin of each link piece 664. The rotation end position around 663 in the counterclockwise direction in FIG. 1 is determined. In addition, each of the above link pieces 66
A spring is attached to 4, and is always biased in the counterclockwise direction, that is, in a direction in which each rubber roller 662, 662 is brought into pressure contact with the curved surface 60A, 60A of the corresponding slider plate 60, 60, respectively.

Further, the roller support plate 661 itself is rotatably supported around the rotation shaft 63,
The engagement pin 66 is raised from the casing 67
6 and is negatively biased by a spring.

The casing 67 is integrally supported by the rotating shaft 63 mentioned above, and the sprocket 6
4 rotates around the support shaft 63, and as a result, the pair of rollers 662, 662 and the slide plates 60, 6 are rotated.
0 can be rotated and exchanged.

Furthermore, a pivot shaft 67 is provided inside the casing 67.
A support plate actuating link 672 is provided which is pivotally supported in the middle so as to be rotatable by the support plate 1. This link 672 has an engagement pin 67 planted at one end.
3 is engaged in an elongated hole 674 formed in the roller support plate 661, and a pressure receiving part 675 for pushing down is provided at the other end, and this pressure receiving part 675 projects slightly upward from the casing 67 in normal times.
When the above-described binding arm 6 is pressed down, the push-down abutting portion 676 formed on this arm 6 immediately before the end of pushing down the arm 6
Each slider plate 60 can be slid by hitting it and rotating it around the pivot shaft 671.

That is, as is clear from FIG. 24A, under normal conditions, each link 67 is
The two pressure receiving portions 675 protrude upward, and at this time, the respective slider plates 60 are arranged in series with their tips 601 abutting against each other. In this state, adhesive tape 3
5 is supported by the slider plate 60.

Further, when the binding arm 6 is pushed down, the push-down abutment part 676 abuts against the pressure receiving part 675, and when this pressure receiving part 675 is pushed down, the slider plates 60 slide away from each other as shown in FIG. 24B. There is a gap 6 between each slider plate tip 60A through which the adhesive tape 35 can pass.
77 will be released.

In addition, each of the slider plates 60 is connected to the casing 6.
The slider plate 60 is slidably held by a holding fitting 678 attached to the outer surface of the slider plate 60. A positioning part 60B with a rectangular cross section is formed in the middle of the slider plate 60 to prevent backlash of the slider plate 60. It is formed to prevent sticking.

Next, details of the binding arm side tape adhesion mechanism 5B provided at the tip of the binding arm 6 will be explained with reference to FIGS. 1 to 2 and FIG. 26. A rod-shaped handle 6a is provided on the tip side (right end side in FIG. 1) of the binding arm 6 to protrude forward, and arm side plates 6a and 6b, which are the side parts of the binding arm 6, are provided downward. The push-down abutting portion 676 is formed in a bulged state.
is provided.

Between these arm side plates 6a and 6b, a first
In the figure, the cutter 71 and cutter guide plate 72 are on the left end side.
and roller operating plate 73 and rubber roller for pasting 662
A roller support plate 74 is provided which is pivotally supported.

To explain each of these members in more detail, as is clear from FIG. At the same time, they are firmly fastened with a bolt 72C and a nut 72D so as to be pressed and clamped by a clamping plate 72B.
Furthermore, the cutter guide plate 72 is attached to the cutter guide plate 72 by inserting and engaging the engaging members 72E into the locking holes 72F and 72G.

In addition, the cutter guide plate 72 has leg portions 721 on both sides.
An abutting inclined edge 722 is formed on one side of the lower end of this leg portion 721 .

Next, the roller operating plate 73 is a member for rolling the roller 662 into contact with the slider plate 60, and has a curved edge 731 formed at one side edge of the lower end. Also, on the right end side, that is, the binding arm 6
A tape running guide 75, guide rollers 76, 76, a tape holding member 77, and a tape push-down rod 78 are provided on the leading end side.

Next, the operating state of the above configuration will be explained.

When bundling, with the bundling arm 6 in an upright state as shown in FIG.
Guide roller 76 at the tip of binding arm 6 from a,
76, and is held between the slider plate 60 and the roller 662 located on the left side in FIG.

From this state, when the object to be bound 27 is inserted from the right side in FIG. The portion of the adhesive tape 35 that reaches the roller 662 is fed out so as to be wrapped around the object 27 to be bound.

Therefore, this binding operation state will be explained in the order of steps with reference to the above-mentioned drawings and FIG. 23.

First, in the state shown in FIG. 23A, that is, in the state in which the object to be bound 27 is inserted as described above,
The tip 35A of the adhesive tape 35 is stuck to one slider plate 60 from below along its curved surface 60A.

Moreover, the slider plate 60 is attached to the adhesive tape 35.
It is located on the inner diameter side of the loop, that is, on the side of the object to be bound 27, and the curved surface 60A is installed facing in the outer diameter direction.

Therefore, when the binding arm 6 is pushed down from the above state, the midway portion of the adhesive tape 36 is pulled down as the guide roller 76 moves downward, and is eventually wrapped around the object 27. The result is as shown in FIG. 23B.

That is, in the state shown in FIG. 23B, the binding arm 6
Curved surface 731 of the roller operating plate 73 provided on the side
When the roller support plate 661 hits the pivot pin 663 of the link piece 664 of the bonding unit 66 and is pushed down in the figure, the roller support plate 661 is forcibly rotated counterclockwise around the support shaft 62. become. At the same time, a rubber roller 662 for pasting the adhesive tape, which is pivotally supported on the tip of the roller support plate 74, pushes down the middle part of the adhesive tape 35, and gradually the tip 35A of the tape pasted on the slider plate 60. guide them so that they overlap along the outer surface side.

Furthermore, at the same time, the tape clamping member 77 made of, for example, rubber is clamping the adhesive tape 35 between it and the upper edge 60C of the other slider plate 60 located on the right side in FIG. 23B.

When the pressing down operation of the binding arm 6 further progresses from the above state, the cutting edge 71A of the cutter 71 cuts the adhesive tape 35 at a position between the slider plates 60, 60, as shown in FIG. 23C.

Then, when the binding arm 6 is further pushed down, as shown in FIG. 23D, the tape bonding rubber roller 662 moves the slider plate so that the loop end portion 35C of the adhesive tape 35 overlaps the outer surface of the tape tip 35A. 60 curved surfaces 60A
It is lowered by turning along the line.

That is, since the roller operating plate 73 is further lowered, the rotation of the roller supporting plate 661 is further progressed.

Next, in the state shown in FIG. 23E, the rubber roller 662 finishes pressing and bonding the respective tape ends 35A and 35C together, and at this time, the tape pushing rod 78 is pushed down as the binding arm 6 is pushed down.
The tip end 35A of the tape for the next bundling cut off by the cutter 71 is transferred to the other slider plate 60.
It pushes down along the curved surface 60A. This state is the state shown in FIG. 23F.

In addition, in the process of transitioning from the state shown in FIG. 23 E to F, the inclined edge 722 provided at the tip of each leg 721 of the cutter guide plate 72 is located below the cutting edge 71A of the cutter 71 in the advancing direction. Pivot pin 66
3, the cutting edge 71A is formed so that it can avoid the pin 663 and descend.

When the state shown in FIG. 23E is reached, the adhesive tape 35 finishes binding the objects 27 in a loop, and the one slider plate 60 is removed from the loop.

This point will be discussed later with reference to FIGS. 24 and 25.

Furthermore, when the series of steps from A to F in FIG. 23 are completed, the bonding unit 66 is rotated and replaced in preparation for the next bundling, but this point is explained in FIGS. 14 to 21. will be described later with reference to.

Therefore, immediately after being bundled as shown in FIG. 23, one slider plate 60 remains located within the loop of the adhesive tape 35 as shown in FIG. 25.

That is, as shown in FIG. 24A, each slider plate 60 supports the tape 35 from the inner diameter side of the lube in a state in which the tips 601, 601 abut each other and are arranged in series. At this time, the operating links 672, 6
Each of the pressure receiving parts 675, 675 of 72 is in a state of protruding upward from the casing 67 of the bonding unit 66.

Therefore, when the binding arm 6 is pushed down to the lowest position as shown in FIG. 23F, this arm 6
A push-down abutting portion 676 formed at the bottom pushes down each of the pressure receiving portions 675, 675. Then, the link pieces 672, 672 are rotated, and each slider plate 60 engaged therewith is moved to the second position.
As shown in FIG. 4B, the tips 601, 601 are moved apart and removed from the loop of the adhesive tape 35.

With the above operations, one binding operation can be completed.

Furthermore, when the binding arm 6 is pressed down, a brake is applied to the rotation of the tape wheel 13 in conjunction with the movement of the arm 6, thereby preventing the adhesive tape 35 from becoming loose.

That is, the above-described operations from FIG. 8 to FIG. 10 apply a brake to the tape wheel 13 during binding, that is, when the binding arm 6 is pushed down, and as the binding arm 6 returns upward, the tape wheel 13 can be switched to a free state.

Next, the bonding unit 66 is rotated after the one-time binding process is completed, and each pair of slider plates 60, 60 and rollers 664, 664 are replaced. However, this unit 66
is locked by a locking mechanism so that a stable installation state can be achieved during binding, and therefore, during the rotation operation, the locking mechanism is first released and then rotational force is applied to the bonding unit 65. ing.

Here, a link mechanism for rotating the bonding unit 66 in conjunction with the movement of the binding arm 6 and transmitting an operating force to operate the locking mechanism of this unit 66 is shown in FIG. This will be explained with reference to FIGS. 2, 11, 12, and 13.

That is, 81 is a vertical link whose upper end is connected and pivoted to the base end of the binding arm 6 by a pivot pin 81A. One free end of a fan-shaped link 82 is connected to the lower end of this link 81 by a pivot pin 82A. The fan-shaped link 82 is rotatably supported on the support arm 7 by a support shaft 82B, and one end of a horizontal link rod 83 is pivotally connected to the other free end by a pivot pin 82C. . This horizontal link rod 83 extends in the front-rear direction below the pedestal 10, and faces the tape adhesion mechanism 5A on the base side.
It is pivotally connected to one end of 4 by a pivot pin 84A.

In addition, a link adjustment mechanism is provided in the middle of the horizontal link rod 83, as will be explained in detail with reference to the table 12 in particular. That is, a large number of link members 8
1, 82, 83, 84 are a large number of pivot pins 81A,
Since they are connected via 82A, 82B, and 82C, the horizontal link rod 83 has a cylindrical large-diameter portion 831 at one end in order to absorb and adjust rattling and play between the link members. has
A small diameter shaft portion 832 is arranged on the other end side. The large diameter portion 831 has a tip end of the thin shaft portion 832 inserted into an axial inner space 833, and a spring 834 is interposed therebetween. Further, a long hole 835 is formed in the large diameter portion 831 so as to communicate between the inside and outside of the inner space 833, and a locking hole 835 is provided inside the long hole 835 and protrudes from the tip of the thin shaft portion 832 in the outer diameter direction. A stop pin 836 is inserted and protruded. Furthermore, a male thread 837 is threaded on the outer circumferential surface of the large diameter portion 831 including a portion where the elongated hole 835 is disposed, and a double nut 838 is screwed into the outer circumferential surface of the large diameter portion 831 .
36 can be adjusted, and the entire length of the horizontal link rod 83 can be adjusted.

Next, the operation of the locking mechanism of the bonding unit 66 and the rotational operation of the unit 66 will be explained with reference to FIG. 1 and FIGS. 14 to 12.

Reference numeral 90 denotes a turn stopper, which has a stopper portion 91 at the upper end of the vertical piece, and is adapted to face and abut one end of the bonded unit 66 from below, thereby preventing the unit 66 from rotating. That is, this stopper 90 is rotatably supported by a support shaft 92, and has a roller abutting piece 93 that is bent and protrudes in the horizontal direction from a midway portion, and further includes an engaging edge 94 at a midway portion.
comes into contact with the main shaft 95, and the end of movement in the clockwise direction is set. Further, reference numeral 96 denotes a turns setter whose engaging portion 86B at the upper end of the vertical portion faces the lower end of the other end of the bonding unit 66 to restrict movement of the unit 66 in the reverse direction. This turn setter 96 has its midway portion connected to the main support shaft 9.
7, and a spring 98 is interposed between the roller contact piece 93 and the roller contact piece 93. In addition,
The midway inclined edge 96A of the turns setter 96 comes into contact with the main shaft 95 to set the end of movement in the counterclockwise direction.

99 is a roller for releasing the turn stopper 90. This roller 99 is the ratchet gear 10
It is pivotally supported by a support shaft 102 at the tip of a swinging metal fitting 103 together with a ratchet feed pawl 101 that meshes with the ratchet feed pawl 101 . In addition, the metal fitting 103 has a middle part connected to the support shaft 1.
04, the stand link 94 operating end 94A
It is pivoted on.

When the binding arm 6 is upright as shown in FIG. 1, the horizontal link rod 83 has moved to the right end as shown in FIG. 14, and the stand link 94 rotates counterclockwise around the ratchet shaft 105. It is moving to the end of the direction.

At this time, the ratchet feed pawl 101 is fitted into the engagement recess 100A of the ratchet gear 100, and the roller 99 is spaced apart below the roller contact piece 93.

Therefore, in the state shown in FIG. 14, the bonding unit 66 is in a state where its rotation is restricted.

By the way, when pushing down the binding arm 6, from the state shown in FIG.
is moved to the left, and after passing through the state shown in FIG. 15, the roller 99 moves downward near the tip of the roller abutting piece 93, as shown in FIG.

By the way, during the process in which the roller 99 moves from the position shown in FIG. 14 to the state shown in FIG. 15 and then to the state shown in FIG. 16, the roller 99 does not come into contact with the roller contact piece 93.

That is, the singing fitting 103 is rotatable about the stand link 84 around the support shaft 104, and the ratchet feed pawl 101 is also rotatable about the support shaft 102.

Therefore, as shown in FIG. 15, when the feed pawl 101 moves over the peak 100B of the ratchet gear 100 to the right in the figure, the feed pawl 101 moves clockwise around the support shaft 102. The swinging metal fitting 103 is also rotated on the support shaft 104.
The roller 99 is rotated counterclockwise around the roller 99, so that the roller 99 passes below the roller contact piece 93.

Next, when returning the binding arm 6 from the depressed state shown in FIG. 2 to the upright state shown in FIG. 1, that is, when moving it from the state shown in FIG. 16 to the state shown in FIG. 101 is a recess 100 of the ratchet gear 100
A, then the swinging metal fitting 103 engages with the support shaft 10.
4 in the clockwise direction, and the roller 99 is substantially moved upward in FIG. 17.

Then, this roller 99 contacts the roller contact piece 9.
Hit from below against 3, turn stopper 9
0 in a counterclockwise direction around the support shaft 92, as shown in FIG. 17, the bonding unit 66 is unlocked.

As described above, the turn stopper 90 is locked, and when locked, the bonding unit 66 is locked in a state in which it cannot rotate forward, reverse, or shift as shown in FIG.

When the lock is released as shown in FIG. 17, the turn stopper 97 allows the unit 66 to rotate counterclockwise as shown in FIG. 19. Then, as explained with reference to FIG. 17, when the binding arm 6 continues to return in the upright direction with the ratchet feed pawl 101 engaged with the recess 100A of the ratchet gear 100, the horizontal link rod 83 moves as shown in FIG. It is further moved to the right, and the stand ring 84, the swinging metal fitting 103, and the ratchet feed pawl 101 cause the ratchet gear 100 to rotate counterclockwise around the ratchet shaft 105.

Then, the sprocket 64 integrated with the rotating shaft 63 changes from the state shown in FIG. 19 to the state shown in FIG.
The bonding unit 66 is rotated to the state shown in FIG. 1, and the bonding unit 66 is also rotated through an angle of 180° around the support shaft 62 via the chain 65.

Due to the rotational operation, the other slider plate 60 in the state shown in FIG. 23F, that is, the other slider plate 60 located on the right side in the figure, is moved to the position shown in FIG. 23A, and the adhesive tape 35 used for the next bundling is moved. The tip is attached and supported.

In the above configuration, if the guide rollers 8a and 76 are formed so that the diameter around the axis bulges in the middle in the axial direction, as shown in FIG. 7, the tape 35 can be accurately guided. be able to.

〔effect〕

In the present invention, friction plates are arranged on both sides of a rotating disk that is rotationally connected to a tape reel so as to be integrated with the rotating disk in the rotation direction, and furthermore, friction plates are provided on both sides of the rotating disk through the friction plates. Since the friction plates are sandwiched, a strong braking force can be obtained even with a weak spring force, and therefore the braking force can be easily adjusted.

[Brief explanation of the drawing]

FIG. 1 shows a partially vertical schematic side view of an embodiment applied to a vegetable binding device, and shows the operating handle in an upright state. FIG. 2 also shows the operating handle in a depressed state. Fig. 3 is an enlarged plan view of the tape reel brake mechanism, Fig. 4 is an enlarged plan view of the tape bonding mechanism, Fig. 5 is a partially cutaway rear view, and Fig. 6 is an enlarged plan view of the tape reel brake mechanism. 5 is a cross-sectional view of FIG. 5; FIG. FIG. 7 is an enlarged front view showing an example of the guide roller. 8 to 10 are schematic side views showing the operating states of the tape reel brake mechanism in the order of operation as FIGS. 8, 9, and 10.
FIG. 11 is a side view of the bonded unit operating link, and FIG. 12 is a partially enlarged longitudinal sectional view. FIG. 13 is an exploded perspective view of the terminal link portion of the bonding unit operating link, the lock release mechanism, and the feed mechanism portion. 14 to 17 are schematic side views showing the operating states of the locking mechanism of the bonding unit in the order of operation as shown in FIGS. 14, 15, 16, and 17. Figures 18 to 21
The figures show the rotation switching states of the bonding unit in order of operation: Figures 18, 19, 20, and 2.
FIG. 1 is a schematic side view shown as FIG. FIG. 22 is a diagram explaining the bonded unit, where A is a partial perspective view, B is a partial perspective view of another part, C is a partial perspective view of another part, and D is a main part of the entire unit. It is an exploded perspective view showing parts. FIG. 23 is a schematic side view of the main parts showing the tape bonding operation sequentially as A to F in the order of operation. FIG. 24 is a schematic front view of the main part showing the operating state of the tape support plate, where A shows the tape support state and B shows the support plate taken out state after bonding. FIG. 25 is a schematic perspective view illustrating the operation of removing the tape support plate from within the loop of the binding tape. FIG. 26 is an exploded perspective view of the cutter section and the bonding roller section provided on the operating handle side. FIG. 27 is a schematic side view illustrating the bundling state in the conventional case and this embodiment, where A shows the conventional example and B shows this embodiment. DESCRIPTION OF SYMBOLS 1... Binding device, 2... Base, 3... Tape reel, 4... Tape feeding/tightening mechanism, 5...
...Tape adhesion mechanism, 5A...Tape adhesion mechanism on base, 5B...Tape adhesion mechanism on binding arm side, 6
... Binding arm, 10 ... cradle, 11 ... bearing, 12 ... tape wheel, 13 ... wheel gear, 14 ... wheel shaft, 18 ... fixed shaft,
19... Fixed cam plate, 20... Movable cam plate, 21
... Guide roller, 24 ... Friction member, 25 ...
Wheel gear, 25A, 25B...brake member, 251...rotating disk, 26...compression coil spring, 27...object to be bound, 29...cam release plate, 30...cam connection claw, 31, 32... pin,
33... Spring hanging plate, 34... Torsional coil spring, 35... Adhesive tape as binding tape,
36...nail-like process.

Claims (1)

[Scope of utility model registration request] A brake member consisting of a rotating disk rotatably coupled to a tape reel shaft and having friction members fixed on both sides, and a pair of friction members disposed so as to be able to press and hold the rotating disk from both sides, and the brake member being attached to the rotating disk. A braking device for a tape reel in a tape binding machine, comprising a cam means for bringing the brake into contact with and separating from the tape reel, and a binding arm for first applying the brake and then releasing the brake through the cam means.