JP4712274B2 - Binding machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a binding machine, and more particularly to a binding machine that binds a rod-like body or the like with a string-like body that can be twisted and bound.
[0002]
[Prior art]
As a conventional binding machine, a binding machine disclosed in US Pat. No. 4,169,346 is known.
This binding machine is provided with a frame having a notch into which a member to be bound can be inserted on the front side, and a string-like body having a predetermined length in the width direction is provided on the frame so as to cross the notch. A delivery mechanism for delivering is disposed.
Further, on one side of the notch, a rotating plate that rotates the tip to the rear side while traversing the notch on the front side is provided, and the binding member is attached to the tip of the rotating plate. A pair of arms capable of bringing the both ends of the string-like body close to each other are disposed so as to surround the string-like body.
[0003]
With this configuration, when the user pushes the member to be bound into the notch, the feeding mechanism feeds the string-like body toward the notch, and the rotating plate rotates the tip toward the notch. Let
Then, each arm presses the both ends of the said string-like body toward the back of the said notch, and makes the both ends of the said string-like body adjoin each other so that the said to-be-bundled member may be surrounded.
At this time, the bundling mechanism formed at the back of the notch twists and binds both ends of the string-like body.
[0004]
[Problems to be solved by the invention]
In the above-described conventional binding machine, each arm is pressed against the rotating plate to rotate in a direction in which the tips of the arms face each other, so that the string-like body and the binding member are held together. It was difficult to adjust the state of the string-like body during binding.
The present invention has been made in view of the above problems, and an object of the present invention is to provide a binding machine that can easily adjust the state of the string-like body during binding with a simple configuration.
[0005]
[Means for Solving the Problems]
To achieve the above objective, Binding machine according to the present invention Is a bifurcated frame in which a bundling member can be inserted on the front side, and a string feeding mechanism for feeding a string-like body of a predetermined length in the width direction so as to cross a notch portion formed between the two forks of the frame A movable member that moves substantially in the width direction at one side of the cutout portion, a first arm that is rotatably supported by the movable member, and a single member that is supported by the movable member. A second arm that pushes the feeding side of the string-like body to the back of the notch portion so as to be substantially orthogonal to the string-like body, and the movable member moves to the notch portion side, The first arm is rotated on the front side so as to be pulled backward while traversing the notched portion, and the leading end of the string-like body is substantially orthogonal to the string-like body by the first arm. And press it to the back of the notch, When the second arm presses the feeding side of the cord-like body, the tip of the first arm is brought close to the tip of the second arm, and the both ends of the cord-like body are surrounded by the binding member. As shown in FIG. 2, when the both end sides of the string-like body are made close to each other by the arm mechanism, the both end sides of the string-like body are twisted. And a bundling mechanism for bundling.
Configured as above Binding machine , When the string feeding mechanism feeds a string-like body of a predetermined length in the width direction so as to cross the notch part, one side of the notch part into which the binding member formed on the front side of the frame can be inserted When the movable member that can move substantially in the width direction moves to the side of the cutout portion, the second arm that is integrally supported by the movable member is connected to the feeding side of the string-like body. It is made to press to the back of the notch part so that it may be substantially orthogonal to a shape body.
[0006]
When the movable member moves toward the notch portion, the guide mechanism moves the first arm supported rotatably with respect to the movable member on the front side while traversing the notch portion, and the tip is on the rear side. The first arm is used to push the distal end side of the string-like body to the back of the notch so as to be substantially orthogonal to the string-like body, and the second arm When the feeding side of the string-like body is pressed, the tip of the first arm is brought close to the tip of the second arm, and both ends of the string-like body are brought close to each other so as to surround the binding member.
Then, the bundling mechanism formed at the back of the notch portion twists and binds both ends of the string-like bodies that are close to each other.
Accordingly, the second arm only needs to be integrally supported with respect to the movable member, and both ends of the string-like body can be provided without providing a guide mechanism or the like between the frame and the first arm. The side is brought close to the bound member by the first arm guided by the guide mechanism.
[0007]
The string-like body here may be anything that can be bundled when the front end side end and the delivery side end are twisted around the member to be bound, for example, the whole made of resin It may be a wire or a wire coated with a resin. However, the form of these string-like bodies is only an example, and the string-like bodies according to the present invention are not limited to any material or shape, and are made of any material and have any shape. Is possible.
Moreover, since the said front side has only shown the relative position when it sees from the whole said flame | frame, the direction of the said notch can be suitably changed with the arrangement | positioning of the said flame | frame.
[0008]
By the way, when the both ends of the string-like body are wound around the member to be bound, an additional configuration can be provided so that the both ends are brought close to each other at a predetermined position in order to prevent a binding error.
An example of this additional configuration Is The string feeding mechanism includes a string pressing mechanism that presses the fed string-like body from a front side of the cutout portion to a bundling member inserted in the back of the cutout portion. Be done .
[0009]
An example of the additional configuration In this case, the string holding mechanism presses the string-like body fed out by the string feeding mechanism from the front side of the notch portion to the bundling member inserted in the back of the notch portion, and Position with respect to the member to be bound.
Then, when the both end sides of the string-like body are guided by the arm mechanism, the positions of both ends of the string-like body do not shift, and the both end sides approach each other at a predetermined position.
[0010]
Also ,Up An example of an additional configuration to ensure the bundling operation by the bundling mechanism Is The string feeding mechanism feeds the string-like body so that the length from the tip side to the pressing portion by the string pressing mechanism and the length from the pressing portion to the feeding side are substantially uniform. Be done .
An example of the additional configuration The string feeding mechanism sends out the string-like body so that the length from the tip side to the pressing portion by the string pressing mechanism and the length from the pressing portion to the feeding side are substantially uniform. When the both end sides of the cord-like body are brought close to each other by the arm mechanism and the bundling operation is performed by the bundling mechanism, the length between each end portion of the cord-like body and the bundling portion becomes substantially uniform. In this case, it becomes useful also in the point which can prevent that the both ends length of the string-like body after bundling becomes uneven.
[0011]
In addition, the said string feeding mechanism should just be the string-shaped body formed continuously from the viewpoint that what is necessary is just to send out the string-shaped body of predetermined length to the width direction so that the said notch part may be crossed. It may be sent out while being cut, or it may be sent out a string-like body cut in advance to a predetermined length. In the former case, the length of the string-like body sent out can be adjusted. Thus, an adjustment mechanism can be provided as necessary.
Further, the guide mechanism provided in the arm mechanism only needs to guide the first arm, and an example of a specific configuration is provided. Is The guide mechanism is an uneven guide mechanism formed between the frame and the first arm; and Be done .
[0012]
An example of the specific configuration In this case, a concave / convex guide mechanism formed between the frame and the first arm guides the first arm.
The concave-convex guide mechanism referred to here may be a guide groove provided on the first arm by a guide groove formed on the frame, or may be formed on the first arm. A guide pin provided in the frame may be guided by the guide groove.
Further, since the concave / convex guide mechanism is not limited to the combination of the guide pin and the guide groove, a gear mechanism or the like may be provided between the frame and the first arm.
[0013]
【The invention's effect】
As described above, the present invention easily adjusts the state of the string-like body at the time of binding with a simple configuration. While avoiding binding errors A possible binding machine can be provided.
Contract Claim 2 According to the invention, a binding mistake can be prevented more reliably.
Contract Claim 3 According to the invention, the guide mechanism can be configured only by adding a simple structure.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view showing the main configuration of a binding machine according to an embodiment of the present invention. Hereinafter, the upper side of the paper surface is referred to as the front side, and the front side of the paper surface is referred to as the upper side, but the direction can be appropriately changed depending on the place of use.
The frame 10 is formed with a notch 10a into which the bundling member M can be inserted in the front, and a rectangular hole 10b is formed behind the notch 10a in order to secure a rotation range of a twist head described later. Yes.
Further, behind the rectangular hole 10b, a rotating cam 11 that is supported coaxially with a motor shaft 10c (not shown) that protrudes substantially vertically downward from the frame 10 is disposed. As the shaft 10c rotates. One bundling operation is completed while the rotating cam 11 makes one round clockwise.
[0015]
A string feeding mechanism 20 is formed on the right side of the rotary cam 11 in the frame 10. A gear 21a formed at a part of the periphery of the rotating body 21 formed integrally with the rotating cam 11 in a coaxial state is supported by a shaft 22a whose axis is oriented in a substantially vertical direction, and will be described later. A gear 22b integrally formed coaxially with the string feed roller 22 for feeding out H is meshed.
On the right side of the string feeding roller 22, a string feeding roller 23 supported by the frame 10 with the axis line oriented in a substantially vertical direction is disposed, and a string-like shape is provided between the string feeding rollers 22 and 23. The string H is fed forward by pinching the body H and rotating the string feed roller 22 counterclockwise and the string feed roller 23 clockwise.
[0016]
That is, when the rotary cam 11 rotates, the string feeding roller 22 rotates counterclockwise while the gear 21a and the gear 22b are engaged with each other. Therefore, the rotation of the string feeding roller 22 and the string feeding roller 23 are rotated. By the auxiliary rotation, the string-like body H is sent out to the notch 10a side by a predetermined length. The predetermined length here refers to the length from the tip to the position facing the bundling member M when the string-like body H is drawn out to the notch 10a, and the frame described later from the position facing the bundling member M. It means a length that is substantially equal to the length up to.
The rotating shaft that supports the string feeding roller 23 is attached to the front end of the operation lever 24 that can rotate on a horizontal plane with the support pin 24a as a fulcrum. Since the operation lever 24 is urged rightward by the spring body 24b on the rear end side, the user resists the urging force on the rear end side of the operation lever 24 before starting the binding work. The string-like body H is inserted between the string feed rollers 22 and 23 while being pushed leftward. Then, by the counterclockwise rotation by the restoring force of the spring body 24b, the string feeding rollers 22 and 23 are brought into contact with each other to sandwich the string-like body H.
[0017]
As shown in FIG. 2, the frame 10 is provided with a pivoting body 12 having an opening 12a capable of accommodating the rotating cam 11 on the same horizontal plane. The pivoting body 12 is attached to the frame 10 on the rear end side. On the other hand, while being rotatably supported by the support pin 12b, a gear 12c is formed on the front end side.
A convex portion 12a1 is formed in the opening 12a of the pivoting body 12 toward the rotational shaft side of the rotary cam 11. When the rotary cam 11 rotates in the clockwise direction, the convex portion 11a formed on the rotary cam 11 is formed. When pressed against the convex portion 12a1, the pivoting body 12 rotates clockwise around the support pin 12b as the rotary cam 11 rotates.
At this time, since the pivot body 13 is disposed in front of the pivot body 12 in the frame 10 and is supported by the frame 10 by the support pins 13a and includes the gear 13b meshed with the gear 12c at the rear end. As the moving body 12 rotates in the clockwise direction, the pivoting body 13 rotates counterclockwise around the support pin 13a.
[0018]
A string pressing mechanism 30 is formed between the depth of the notch 10 a in the frame 10 and the pivoting body 13.
The string pressing mechanism 30 includes a string pressing member 31 and a spring 32. The substantially disc-shaped main body 31a constituting the string pressing member 31 is supported to be rotatable with respect to the frame 10 by a support pin 33 having an axis oriented in a substantially vertical direction. A string holding arm 31b is extended.
[0019]
Further, a mounting pin 31a1 for supporting one end of the spring 32 to the left rear is provided on the periphery of the main body 31a. The other end of the spring 32 straddles the pivoting body 13 from the back side and the right end side of the frame 10. Attached to.
A substantially arch-shaped arm 13c is formed from the left rear end of the pivoting body 13 so as to extend forward while wrapping behind the string pressing member 31. The arm 13c is formed on the rear side by a spring 32. The movement of the string pressing arm 31b biased toward the rear is restricted from the rear side.
[0020]
With this configuration, when the pivoting body 13 starts to rotate counterclockwise, the arm 13c formed on the pivoting body 13 moves to the left rear. For this reason, the string pressing arm 31b is gradually moved backward by the biasing force of the spring 32 while being regulated by the arm 13c.
Then, the string pressing arm 31b that has been retracted to the right of the notch 10a before the start of the bundling operation starts to protrude toward the back of the notch 10a, and in front of the binding member M inserted into the notch 10a. The string-like body H being fed out is pressed toward the binding member M. At this time, the string-like body H is pressed against the bundling member M in the vicinity of the center from the tip to the cutter mechanism described later.
Further, after the bundling operation is completed, the arm 13c also rotates clockwise as the pivoting body 13 rotates clockwise, so that the string pressing arm 31b resists the urging force of the spring 32. The arm 13c accommodates the cutout 10a on the right side.
[0021]
An arm mechanism 40 is formed on the right front side of the frame 10. As shown in FIG. 3, first and second arms 41 and 42 are attached to the front end of the pivoting body 13. Here, the pivoting body 13 that moves the front end side in the left-right direction constitutes a movable member referred to in the present invention.
As shown in FIG. 4, the first arm 41 is configured by a substantially bow-shaped member, and is attached to the pivoting body 13 by a support pin 13 d inserted through a through hole 41 a formed near the center. In addition, a guide pin 41 b is erected substantially vertically upward at the rear end, and the guide pin 41 b is guided by a guide groove 10 d formed in the frame 10. In this sense, the guide pin 41b and the guide groove 10d constitute a guide mechanism and an uneven guide mechanism according to the present invention.
[0022]
When the pivoting body 13 starts to rotate counterclockwise, the first arm 41 is integrated with the pivoting body 13 because the guide pin 41b moves on the arc supporting the support pin 13a as shown in FIG. Move on. For this reason, the left end of the first arm 41 moves to the left side of the notch 10a across the notch 10a.
Since the guide groove 10d is bent forward from the left end, when the guide pin 41b reaches the left end of the guide groove 10d, the guide pin 41b is further moved leftward as the pivoting body 13 further moves to the left. The first arm 41 rotates counterclockwise with the support pin 13d as a fulcrum. Therefore, the tip end of the first arm 41 wraps around the member to be bound M on the left side of the notch 10a and guides the left end of the string-like body H to the rectangular hole 10b.
[0023]
On the other hand, as shown in FIG. 6, the second arm 42 is composed of a plate-like main body 42a and an arm 42b obtained by bending a belt having a predetermined width in the longitudinal direction. It is welded to the main body 42a with its ends oriented leftward and forward.
Unlike the first arm 41, the main body 42a is attached to the pivoting body 13 by support pins 13d and 13e inserted through the through holes 42a1 and 42a2. Therefore, the second arm 42 moves integrally with the pivoting body 13 as shown in FIG. That is, it moves on an arc having the support pin 13a as a fulcrum, and the right end of the string-like body H is guided to the rectangular hole 10b formed at the rear of the notch 10a on the right side of the notch 10a.
Further, after the bundling operation is completed, the pivot body 13 rotates in the clockwise direction, so that the first arm 41 retracts to the right side of the notch 10a while guiding the guide pin 41b by the guide groove 10d. The second arm 42 retreats to the right side of the notch 10a together with the pivoting body 13.
[0024]
A cutter mechanism 50 is formed behind the arm mechanism 40 in the frame 10.
A guide groove 14 capable of guiding the string-like body H in the front-rear direction is formed in the frame 10 in front of the string feed mechanism 20, and the string-like body H fed from the string feed mechanism 20 through the guide groove 14. As shown in FIG. 7, it is sent out to the notch 10a through a frame 51 arranged on the right side of the notch 10a. The frame 51 is formed with a rectangular hole 51a penetrating in the left-right direction as shown in FIG. 8, and a string-like body H fed from the right side of the rectangular hole 51a is formed in a notch 10a provided on the left side. Supply.
[0025]
A rotating body 52 is integrally attached to the lower side of the rotating body 21 so as to be coaxial with the rotating cam 11, and the axis of the frame 10 in front of the rotating body 52 is oriented in a substantially vertical direction. The rear end side right side of the arm 53 is attached to be rotatable with the support pin 10e as a fulcrum.
On the left side of the rear end side of the arm 53, a guide pin 53a is erected substantially vertically upward. The guide pin 53a abuts on the periphery of the rotating body 52. For this reason, when the convex portion 52a protruding in the radial direction from the peripheral edge of the rotating body 52 reaches the position where the guide pin 53a is disposed, the guide pin 53a is pushed forward by the convex portion 52a, so the front end side of the arm 53 is The support pin 10e is pivoted clockwise around the fulcrum.
[0026]
A substantially U-shaped cutter support member 54 is disposed in front of the arm 53. The cutter support member 54 is supported to be rotatable with respect to the frame 10 with a support pin 10f inserted through a through hole 54a provided in a bent portion at the front right side of the frame 51. The rear end of the cutter support member 54 comes into contact with the front end of the arm 53 from the right side, and the front end of the cutter support member 54 supports the cutter 55 in front of the frame body 51.
The cutter 55 has a blade portion 55a formed at one end of the belt body, and the other end is rounded in the longitudinal direction to form an insertion hole 55b. The insertion hole 55b is inserted with a support pin 54b protruding substantially vertically upward at the front end of the cutter support member 54, so that the cutter 55 is rotatably supported with respect to the cutter support member 54.
[0027]
With this configuration, when the convex portion 52a of the rotating body 52 presses the guide pin 53a upward on the right side, the front end of the arm 53 rotates clockwise with the support pin 10e as a fulcrum. Then, since the front end of the arm 53 presses the rear end of the cutter support member 54 to the right, the cutter support member 54 rotates counterclockwise with the support pin 10f as a fulcrum. Then, since the front end moves leftward and rearwardly, the cutter 55 moves rearward on the left side of the frame body 51 and cuts the string-like body H passed through the rectangular hole 51a of the frame body 51 with the blade portion 55a.
At this time, a spring body 56 is attached to the support pin 54b, and one end of the spring body 56 is bent substantially vertically downward, and the rear end side of the cutter 55 is biased rightward by the bent tip. Is done. Accordingly, the cutter 55 moves rearward while being pressed against the left wall surface of the frame body 51, and cuts the string-like body H between the rectangular hole 51a.
[0028]
Further, since the other end of the spring body 56 presses from the front side against the pin 54c erected substantially vertically upward from the vicinity of the bent portion of the cutter support member 54, the spring body 56 moves the cutter 55 rightward. Simultaneously, the cutter support member 54 is urged to rotate clockwise.
For this reason, when the pressing force against the cutter support member 54 by the front end of the arm 53 is released when the convex portion 52a of the rotating body 52 retreats from the position facing the guide pin 53a, the restoring force of the spring body 56 causes the arm The front end of 53 is pushed back counterclockwise with the support pin 10e as a fulcrum, and the cutter support member 54 is pushed back clockwise. Therefore, the blade portion 55 a of the cutter 55 is retracted forward of the rectangular hole 51 a of the frame body 51.
[0029]
A binding mechanism 60 as shown in FIG. 9 is formed behind the notch 10a. A shaft 61 having an axis oriented in the front-rear direction from the rectangular hole 10b to the rotating body 52 is disposed. As shown in FIG. 10, a substantially S-shaped twist head 62 is integrally formed at the front end of the shaft 61, and at the rear end side of the shaft 61, as shown in FIG. A gear unit 63 having a gear 63a formed in the circumferential direction is integrally disposed.
Since the gear 52b formed on the peripheral lower surface of the rotating body 52 is engaged with the gear 63a as shown in FIG. 11, the shaft 61 rotates in a predetermined direction as the rotating body 52 rotates. Then, since the twist head 62 formed at the front end of the shaft 61 also rotates, the both ends of the string-like body H guided to the rectangular hole 10b by the above-described arm mechanism 40 are respectively clamped and bound.
[0030]
Here, in the rotator 52, the gear 52b is formed in a portion adjacent to the counterclockwise direction of the convex portion 52a, and is formed in a portion adjacent to the clockwise direction of the gear 21a formed in the rotator 21. .
This is because when the rotating bodies 21 and 52 rotate in the clockwise direction, the movements of the members related to the binding operation are performed in order. That is, the string feeding mechanism 20 feeds the string-shaped body H by the gear 21 a formed on the rotating body 21. Then, when the string holding mechanism 30 and the arm mechanism 40 guide the both ends of the string-like body H to the rectangular hole 10b while the string-like body H is pressed against the bundling member M by the pivot bodies 12 and 13 described above, a convexity is generated. The cutter mechanism 50 cuts the string-like body H into a predetermined length by the portion 52a. Then, the binding mechanism 60 twists both ends of the string-like body H by the gear 52b described here to perform the binding, thereby completing the binding operation.
[0031]
Incidentally, a switch mechanism 70 as shown in FIG. 12 is formed from the rear of the notch to the rear left end of the frame. The switch mechanism 70 is a mechanism for turning on the motor and starting the rotation of the shaft 10c.
Further, the start lever 71 arranged so as to cross the depth of the notch 10a is supported at the right end by a support pin 10g erected substantially vertically upward from the frame 10, and can be rotated around the support pin 10g as a fulcrum. ing.
[0032]
At the left end of the start lever 71, the front end of the arm 72 is rotatably supported by a support pin 71a. The arm 72 is a rotating body formed integrally with the rotating cam 11 and the rotating bodies 21, 52 in a coaxial state. The rear end of the switch 74 is disposed so as to face the switch piece 74 a of the switch 74 disposed on the rear end side of the frame 10 via the left side of 73.
The front end side of the arm 72 is urged forward rightward by a spring 72a. Further, a convex portion 72 b is formed on the right side of the arm 72 toward the rotating body 73, and a convex portion 73 a that protrudes in the radial direction is also formed on the rotating body 73 side.
[0033]
With this configuration, while the convex portions 72b and 73a do not face each other, the rear end of the arm 72 faces the switch piece 74a, and when the convex portions 72b and 73a face each other, the convex portion 73a changes the convex portion 72b. In order to push away to the left, the rear end side of the arm 72 moves leftward with the support pin 71a as a fulcrum, and the rear end of the arm 72 is retracted from the position facing the switch piece 74a.
A substantially U-shaped positioning member 75 is attached near the rear end of the arm 72. The positioning member 75 is disposed on a substantially horizontal plane with its end portions oriented rightward, and the rear bent portion is rotatably supported by a support pin 10 h erected substantially vertically above the frame 10. The rear end is biased to the left rear by a spring 75a, and a positioning pin 75b is erected substantially vertically upward at the front bent portion.
[0034]
With this configuration, the positioning member 75 always biases the rear end side of the arm 72 rightward by bringing the positioning pin 75b into contact with the left side of the arm 72. For this reason, while the convex part 72b of the arm 72 does not oppose the convex part 73a of the rotary body 73, the rear end of the arm 72 is made to oppose the switch piece 74a. And when each convex part 72b, 73a opposes, as above-mentioned, since the rear-end side of the arm 72 is pushed away by the convex part 73a of the rotary body 73, it resists the urging | biasing force of the spring 75a. The front side of the positioning member 75 is pressed leftward.
Therefore, while the bundling member M is inserted in the back of the notch 10a, the arm 72 moves backward against the urging force of the spring 72a as the start lever 71 is pressed backward. As shown in FIG. 13, the switch piece 74a is pushed down by the rear end to turn on the motor.
[0035]
For this reason, the power supply to the motor is continued until the convex portion 73 a of the rotating body 73 faces the convex portion 72 b of the arm 72. And when each convex part 72b, 73a opposes, if the rear end side of the arm 72 is pushed away to the left, while pushing the front side of the positioning member 75 to the left, as shown in FIG. The end moves to the left of the switch piece 74a and abuts against the front surface of the switch body 74b. Then, since the power supply to the motor is not performed, the rotation of the rotating cam 11 and the rotating bodies 21, 52, 73 is stopped, and at this time, the bundling operation is completed.
When the bundling operation is completed, when the operator pulls out the bundling member M from the notch 10a, the left end side of the start lever 71 is pushed back by the biasing force of the spring 72a. It returns to oppose with the switch piece 74a again, and waits for the next bundling operation.
[0036]
In the binding machine according to the present embodiment, various devices other than the configuration related to the binding operation described above are made.
For example, as shown in FIG. 15, in order to protect the rotating bodies 21, 52, 73, a protective cover 15 is attached to the upper surface of the frame 10 so as to cover the rotating bodies 21, 52, 73. . The protective cover 15 is screwed to the upper surface of the frame 10 via a spacer 15a that is longer in the axial direction than the height at which the rotating bodies 21, 52, 73 are overlapped.
At this time, through holes 15b and 15c for inserting the upper ends of the shafts 10c and 22a are formed in the center and the right end side of the protective cover 15, and the upper ends of the shafts 10c and 22a are inserted into the through holes 15b and 15c. Let through Ru As a result, the shafts 10c and 22a are maintained in a substantially vertical direction, and axial shake is suppressed.
[0037]
The protective cover 15 is also formed with a through hole 15d in front of the through hole 15b. A cylindrical body 15d1 is press-fitted into the through hole 15d, and the lower end of the cylindrical body 15d1 is opposed to the upper surface of the rotating body 21 while forming a slight gap as shown in FIG. The cylindrical body 15d1 is configured to restrict the upper surface position of the rotating body 21 by the lower end of the cylindrical body 15d1 so that the rotating bodies 21, 52, 73 do not rotate out of the horizontal plane, and to ensure the engagement of the gears 21a, 52b. Let me.
Further, as shown in FIG. 17, a part 16 of the frame 10 in which the guide groove 10d constituting the arm mechanism 40 is formed is screwed and can be detached. For this reason, when performing maintenance of the arm mechanism 40, it is possible to efficiently remove and repair the frame 10 locally without disassembling the entire frame 10.
[0038]
As shown in FIG. 18, the binding machine having the above configuration is attached to the upper portion of the motor box 80 with the frame surface oriented in a substantially horizontal direction. The motor box 80 houses a motor and a power switch, a power circuit, and the like.
At this time, since the protective cover 81 is attached to the binding machine so as to cover the whole from above, each member arranged on the frame 10 is protected from the outside.
Further, behind the motor box 80, a string-shaped body supply device 90 for supplying the string-shaped body H wound around the drum 91 to the binding machine is attached.
[0039]
A pair of drum support arms 92, 92 project from the rear side of the motor box 80 at a slightly larger distance than the thickness of the drum 91, and a notch 92 a is formed on the upper end side of each drum support arm 92, 92. , 92a are provided.
A through hole 91a is formed in the drum 91 at the center of the rotation surface, and a support shaft 93 is inserted into the through hole 91a. Since both ends of the support shaft 93 are inserted into the notches 92a and 92a, the drum 91 is rotatably supported by the drum support arms 92 and 92.
A tension arm 94 is interposed between the feeding position of the string-like body H on the drum 91 and the rear end of the binding machine. The lower end of the tension arm 94 is rotatably supported below the rear end of the motor box 80, and the upper end side is urged rearward and downward by the spring 94a.
[0040]
A shaft 94b having an axis oriented in a direction perpendicular to the paper surface is integrally provided at the upper end of the tension arm 94, and the shaft 94b has a substantially cylindrical shape having a through hole in the axis direction. The rotating body 94b1 is attached.
With this configuration, the leading end of the string-like body H is sent out from below the drum 91 to the binding machine via the rotating body 94b1. For this reason, when the string feeding mechanism 20 in the binding machine feeds the string-like body, the upper end side of the tension arm 94 is inclined forward against the urging force of the spring 94a. When the string feeding mechanism 20 does not feed the string-like body H, the upper end side of the tension arm 94 is inclined backward by the urging force of the spring 94a, and the slack of the string-like body H is removed.
[0041]
A shaft 94c having an axial line oriented in a direction perpendicular to the paper surface is provided below the rotating body 94b1 in the tension arm 94. This is because when the upper end side of the tension arm 94 is tilted backward by the biasing force of the spring 94a, the tilt angle of the tension arm 94 is regulated by bringing the drum 91 into contact with the shaft 94c.
Further, when the shaft 94c abuts on the drum 91, an elastic member is attached to the shaft 94c so as to cover the peripheral surface so as not to give an impact to the drum 91.
[0042]
By the way, the switch mechanism 70 described above can be realized by another configuration as shown in FIGS. 19 and 20.
That is, by disposing the positioning member 100 instead of the positioning member 75, even if the backward pressing of the start lever 71 by the member to be bound M is interrupted during the binding operation, the rotating cam 11 is stopped. And the switch 74 can be reliably turned off when the bundling operation is completed.
[0043]
The positioning member 100 is bent rightward on the rear end side, and the bent portion is rotatably supported by the support pin 10h. Further, the rear end is biased to the left rear by the spring 75a.
On the other hand, the positioning pin 75b referred to in the present embodiment is not erected on the front end side, but the front end can come into contact with the outer peripheral surface of the rotating body 21. Further, on the outer peripheral surface of the rotator 21, a convex portion 21b that pushes the front end of the positioning member 100 to the left when the bundling operation is completed protrudes on the horizontal plane.
[0044]
Further, on the front end side of the positioning member 100, a pressing surface for maintaining the switch piece 74a toward the switch body 74b when the positioning member 100 rotates clockwise around the support pin 10h is formed.
With this configuration, when the member to be bundled M is pressed against the start lever 71 and the rear end of the arm 72 presses the switch piece 74a toward the switch body 74b, the pressed switch piece 74a becomes the positioning member 100. Since the positioning is performed by the pressing surface, the power supply to the motor is continued.
[0045]
After the bundling operation is started, when the member to be bundled M is not pressed toward the start lever 71, the arm 72 moves forward and returns to the initial position. However, the switch piece 74 a continues to be positioned by the pressing surface of the positioning member 100.
Further, as shown in FIG. 21, when the convex portion 72b and the convex portion 73a face each other, a positioning member is provided on the rear end side of the arm 72. 100 Therefore, there is no problem even if the rear end of the arm 72 is returned to the initial position.
As the rotation of the rotating body 21 proceeds, as shown in FIG. 100 When facing the front end portion of the projection portion 21b, the convex portion 21b becomes a positioning member. 100 Press the front edge of the left side. Then, since the pressing surface is retracted from the position facing the switch piece 74a, the switch piece 74a returns to the front, and the switch 74 is turned off.
[0046]
Therefore, during the bundling operation, the bundling operation is continued without depending on whether or not the member to be bundled M is pressed against the start lever 71, and when the bundling operation is completed, the switch 74 is surely turned off to switch to the motor. Thus, it is possible to stop the power supply, and to prevent a binding mistake and to ensure safety during the binding work.
As described above, the first arm 41 has the string-like body H so that the tip of the first arm 41 goes around the bundling member M while moving the guide pin 41b along the shape of the guide groove 10d as the pivot body 13 rotates. Is guided to the rectangular hole 10b. At this time, the second arm 42 integrally attached to the pivoting body 13 rotates with the pivoting body 13 to guide the right end of the string-like body H to the rectangular hole 10b. Accordingly, it is possible to easily adjust the state of the string-like body at the time of binding with a simple configuration.
[Brief description of the drawings]
FIG. 1 is a plan view showing an upper surface appearance of a binding machine according to an embodiment.
FIG. 2 is a perspective plan view showing a main configuration of a pivoting body and a string pressing mechanism.
FIG. 3 is a perspective plan view showing a main configuration of an arm mechanism.
FIG. 4 is a plan view showing a configuration of a first arm.
FIG. 5 is a plan view showing a configuration of a second arm.
FIG. 6 is an explanatory diagram for explaining the movement of the first and second arms.
FIG. 7 is a plan view showing a main configuration of a cutter mechanism.
FIG. 8 is a plan view showing a configuration of a frame.
FIG. 9 is a plan view showing the main configuration of the bundling mechanism.
FIG. 10 is a plan view showing a configuration of a twist head.
FIG. 11 is a plan view showing a state of meshing between the gear of the rotating body and the gear of the gear unit.
FIG. 12 is a plan view showing a main configuration of a switch mechanism.
FIG. 13 is a plan view showing a situation when power is supplied to a motor.
FIG. 14 is a plan view showing a situation when power supply to the motor is stopped.
FIG. 15 is a plan view showing the main configuration of the protective cover.
FIG. 16 is a cross-sectional view showing the positional relationship between the cylinder and the upper surface of the rotating body.
FIG. 17 is an explanatory diagram for explaining that a part of the frame in which the guide groove is formed is detachable.
FIG. 18 is a side view showing an application example of a binding machine.
FIG. 19 is a plan view showing an upper surface appearance of a binding machine according to a modification.
FIG. 20 is a plan view showing a main configuration of a switch mechanism according to a modification.
FIG. 21 is a plan view showing a situation when the rear end side of the arm is pushed away to the left by the convex portion in the switch mechanism according to the modified example.
FIG. 22 is a plan view showing a situation when the front end side of the positioning member is pressed leftward by the convex portion in the switch mechanism according to the modified example.
[Explanation of symbols]
10 ... Frame
10a ... Notch
10b ... Rectangular hole
10d ... guide groove
11 ... Rotating cam
12 ... Pivoting body
13 ... Pivoting body
14 ... Guide groove
20 ... string feeding mechanism
21 ... Rotating body
22 ... string feed roller
23. String feed roller
24 ... Control lever
30 ... String holding mechanism
31 ... String holding member
32 ... Spring
33 ... Support pin
40 ... Arm mechanism
41 ... first arm
41b ... guide pin
42 ... Second arm
60 ... Bundling mechanism
61 ... Shaft
62 ... Twist head
63 ... Gear unit
H ... string
M ... Bundled member

Claims (3)

A frame having a bifurcated shape into which a member to be bound can be inserted on the front side;
A cord feed mechanism to exit sends a string-like body of a predetermined length in the width direction so as to cross the cutout portion formed in the two crotch of the frame, forward of the notch portions string-like body sent out the A string feeding mechanism comprising a string pressing mechanism that presses against a to-be-bundled member inserted in the back of the cutout portion from the side ;
A movable member that moves substantially in the width direction on one side of the notch,
A first arm that is rotatably supported with respect to the movable member, and a single arm that is integrally supported with the movable member, and is cut out so that the feeding side of the string-like body is substantially orthogonal to the string-like body. When the movable arm moves to the side of the notch part and the second arm to be pressed to the back of the notch part, the tip is pulled backward while traversing the notch part on the front side. The first arm pushes the leading end of the string-like body to the back of the notch so as to be substantially perpendicular to the string-like body, and the second arm has the same string-like shape. A guide mechanism for bringing the tip of the first arm close to the tip of the second arm and pressing both ends of the string-like body close to each other so as to surround the binding member when pressing the delivery side of the body; An arm mechanism having
A bundling mechanism that is formed in the back of the cutout portion and twists and binds the both ends of the string when the both ends of the string are brought close to each other by the arm mechanism. Binding machine. In the binding machine according to claim 1 ,
The string feeding mechanism feeds the string-like body so that the length from the distal end side to the pressing portion by the string pressing mechanism and the length from the pressing portion to the feeding side are substantially uniform. And binding machine. In the binding machine according to claim 1 or 2 ,
The binding machine, wherein the guide mechanism is an uneven guide mechanism formed between the frame and the first arm.

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