JPH0715509U - Binding machine - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] Stable bundling of bag-like objects with strong binding force by a flat-shaped bundling tool made of elastic synthetic resin.
Provided is a binding machine having an overload prevention mechanism. A slider assembly (3) is a reciprocating first slider and a binding tool (21) that is attached to the first slider and located at the front end of a binding band so as to be movable in the axial direction of the first slider.
A second slider that pushes to the front end of the binder band feed passage, and a spring that is arranged between the first and second sliders and that stores energy so as to reduce the length of the slider assembly by a force of a predetermined load or more. The tying member 21 is fed to the front end of the tying member feeding path. The binding device entanglement mechanism 5 rotates around the central axis of the binding device feed passage after both locking wings of the binding device 21 located at the front end of the binding device band are inserted through the openings of the binding device band. By doing so, both locking wings are laid on each other and entangled, and the binding tool 21 is formed into a substantially conical shape with the star-shaped opening as the apex. The power transmission mechanism 13 includes an overload prevention clutch in the middle thereof.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a binding machine used for closing a mouth portion of a synthetic resin bag (including a mesh bag) containing bread, confectionery, processed food, agricultural products, or the like.

[0002]

[Prior art]

 In Japanese Examined Patent Publication No. 63-62416, a flat polyvinyl chloride string having a thin iron wire as a core is used to close the mouth of a bag containing bread, confectionery, and the like. A bag mouth binding machine for closing a bag mouth is disclosed. This binding machine unwinds a flat binding cord with a core wire, such as a metal wire, for a specified length, cuts it, hangs it on the bag mouth, and ties the bag mouth with a folding claw that rotates while scooping the end of the binding cord. In the machine, the drive source shaft is provided at the base end which is on the same line as the axis line of the bag guide groove of the flat frame composed of a pair of side walls with the bag guide groove formed at the tip, and the front side of the drive source shaft. An intermittent gear for string twisting with a circular arc cam for power supply on one side, and an intermittent face gear for string twisting that is integrated with the intermittent gear are attached to the shaft, and an intermittent face gear for string twisting has a folding claw at the tip. In addition to engaging the pinion at the base end of the main spindle, the cam for the strap winding arm was integrally attached to the rear side of the drive source shaft, and the driven rod was made to face the lower end at the intermittent rotation position of the cam for the strap winding arm. It is possible to swing, and the front end of the driven rod can be wound around the shaft of the driven rod. A swinging arm equipped with a moving claw is pivotally attached, and an intermittent gear for feeding the string is engaged with a transmission gear with a notched arc for rest, and the arc for rest slides on the arc surface for opening the power supply. At the same time, one of the pair of friction wheels is mounted coaxially with the transmission gear.

Further, as a binding tool for closing the mouth of a synthetic resin bag such as a polyvinyl chloride bag in a converged state, for example, in US Pat. No. 3,021,354, the mouth of the bag is accommodated. There is disclosed a binding tool that includes a slit that inserts a converged mouth portion of a bag into a receiving opening, and that has a barb or a protrusion that protrudes from a peripheral edge of the opening toward a center.

[0004]

[Problems to be Solved by the Invention] Since the binding machine shown in Japanese Patent Publication No. 63-62416 uses a metal wire as a core wire of a binding cord, how to handle the product in a bag is handled by a consumer. Depending on the situation, there is a risk that the tie straps could hurt your fingertips. Also, the binding force of the binding cord is not sufficient when the weight of the product in the bag is large.

In the Japanese Patent Application No. 4-264263, the applicant of the present application has a large binding force at the time of first use, and the binding operation at the time of reuse by hand is easy, and at the time of first use at the time of reuse as well. We proposed a tying tool and a tying method for closing the mouth of the bag that can maintain the tying force of the bag. This binding method is a flat plate made of an elastic material, and has a first opening provided in the center of the flat plate for accommodating a binding target, and a first opening continuous with the first opening and extending to the outer peripheral edge of the flat plate. A step of assembling a binding tool having two openings and locking wings on both sides of the second opening to the binding target through the second opening, and connecting both sides of the flat plate with the second opening as a boundary. By fitting them together, the diameter of the first opening is slightly reduced and the flat plate is narrowed down into a substantially conical shape with the first opening as the apex, and the binding tool narrowed down into the conical shape is kept in the conical shape. Fixing with a stop blade. The object of the present invention is to provide a device for implementing the above binding method.

[0006]

[Means for Solving the Problems]

 The present invention is a flat plate made of an elastic material, which has a first opening that is provided substantially in the center of the flat plate and accommodates a binding target, and a second opening that is continuous with the first opening and extends to the outer peripheral edge of the flat plate. And a tie located at the front end of a tie belt formed by connecting a plurality of ties having a locking portion provided on both sides of the distal end of the second opening in cascade connection to collect the bags in order. In a binding machine that fits and locks on the outer side of the mouth portion, a slider assembly that feeds the binding tool to the front end of the binding tool band feeding passage by being driven to reciprocate in the binding tool feeding path and driving means. It is a three-dimensional body and is attached to the first slider so as to be movable in the axial direction with respect to the first slider and the first slider which are reciprocally moved by the driving means, and is located at the front end of the binding band. The second slide that pushes the ties up to the front end of the tie strap feeding passage, and And a slider assembly, which is arranged between the second slider and a spring that is stored so as to shorten the length of the slider assembly by a force of a predetermined load or more, and a binder provided at the front end position of the band feed passage. Both locking wings of the tie located at the front end of the band are inserted through the second opening of the tie and then rotated around the central axis of the tie band feed passage to provide the two locking wings. A binding device entwining mechanism for forming a binding device in a substantially conical shape with the first opening as an apex, and an overload prevention clutch, and a power for transmitting power from the driving means to the binding device entanglement mechanism. It is characterized by comprising a transmission mechanism.

[0007]

[Operation and effect of the device]

 According to the present invention, when a load equal to or greater than a predetermined load is applied to the second slider in the feeding process of the binding tool, the spring is further stored in the initial state and the length of the slider assembly is shortened. This protects the load or the binding machine from damage. In addition, when the binding tool is fitted into the outer side of the mouth where the bag-like objects are bundled and both locking wings of the binding tool are entangled, if a load greater than a predetermined load is applied to the power transmission mechanism, an overload will occur. The prevention clutch operates to disconnect the power transmission relationship between the drive means and the binding tool entanglement mechanism. This protects the load or the binding entanglement mechanism from damage.

[0008]

【Example】

 1 and 2, the binding machine of the present invention is a flat plate made of an elastic synthetic resin, and is a star-shaped one that is provided substantially in the center of the flat plate and accommodates a binding target. An opening (first opening) 21a, a second opening 21c that is continuous with the star-shaped opening 21a and extends to the outer peripheral edge of the flat plate, and locking wings 21d provided on both sides of the tip of the second opening 21c. The tying tool 21 located at the front end of the tying tool band in which a plurality of tying tools 21 having the above are connected in series is sequentially fitted and locked to the outer side of the mouth part where the bag-like objects are collected.

As a functional block, the binding machine has a pentagonal binding machine body 1 having a trapezoidal side surface, and a binding machine that is attached to the rear end of the binding machine body 1 and is gradually lowered toward the front. A tool magazine 1a, a trigger 2 pivotally supported by the binding machine main body 1, a slider assembly 3 extending from the rear part of the binding machine body 1 toward the front so as to lower the front, and a slider assembly 3 A binder holder 4 which is coaxially fitted and inserted into the front portion of the slider assembly 3, a claw 35 which controls the slider assembly 3 and the binder holder 4 to be slidable integrally or mutually, and a front end of the binder body 1. And is driven by the binding device entanglement mechanism 5 provided at the front end of the feeding path of the binding device band, the electric motor 6 arranged at the lower part of the binding device main body 1 at the lower part thereof, and the output shaft of the electric motor 6. Reduction gear unit 7 and reduction teeth A main gear assembly 9 that is rotated by an output gear 8 of a vehicle device 7 and has an intermittent gear 10, a power transmission mechanism B that links the intermittent gear 10 of the main gear assembly 9 and a binding member entanglement mechanism 5, and a slider assembly. 3 and a binding tool feed claw / cutter assembly 4 3 provided at the tip of 3. A bag mouth cutting mechanism 12 that is detachable from the binding machine body 1 and is linked to the intermittent gear 10 is provided on the left side surface of the binding machine body 1. The following is a detailed description of each function block.

Binding Machine Main Body The binding machine main body 1 has a plurality of fixtures 14 at the front and rear ends of the lower surface 13. These fixtures 14 are installed on a horizontal workbench surface, for example. The binding machine may be installed vertically with the fixture 14 in contact with the vertical surface. In this case, the left side portion of the binding machine in the drawing is located above, and the right side portion of the binding machine in FIG. 1 is located below.

In the vicinity of the front end of the binding machine body 1, there is formed a focusing groove 15 that extends downward from the upper end side of the binding machine body 1 and focuses the bag mouth portion. The lower end of the focusing groove 15 extends forward from the central axis of the focusing groove 15 to form a rectangular slip-out preventing portion 16. Bundling When a worker holds a bag made of synthetic resin containing confectionery etc. with both hands and pushes it down from the upper end opening of the focusing groove 15 to the lower end, the bag mouth part moves to the fall prevention part 16 due to the shape of the focusing groove 15. Be guided. Even if the bag is subjected to an upward force at the time of cutting by the blade-shaped cutter 81 of the bag mouth cutting mechanism 12, the bag mouth is blocked by the ceiling wall 16a of the slip-out preventing portion 16 and moves upward through the focusing groove 15. Never.

A power unit accommodating portion 17 for accommodating the electric motor 6 and the reduction gear device 7 is projectingly provided on the left side of the binding machine body 1 at the lower portion of the binding machine body 1. .

A ceiling wall portion 25 extends in a long shape from the rear end of the binding machine body 1 to the front side, and projects toward the left side surface of the binding machine body 1 at the rear side of the binding machine body 1. There is an opening 26 for loading a binding tool that extends on the center line of the binding machine body 1 and has an open upper end. The loading passage 26 has, at its front end, an inclined passage 27 that diverts to the right side surface of the binding machine body 1. The inclined passage 27 is continuous with the binder feed passage portion extending from the binder magazine 1a through the slip-out prevention portion 16 at the lower end of the focusing groove 15.

Between the converging groove 15 and the power unit accommodating portion 17, on the right side surface of the binding machine main body 1 which serves as a feed passage of the binding tool, two pivots extending in the front-back direction of the binding machine body 1 ( A door 19 which is opened and closed vertically is disposed by a not-shown). At the upper end of the door 19, there is provided a pawl 18a that rotates around two shafts 18 protruding rightward. The door 19 is latched by these claws 18a in the closed state. On the inner surface of the door 19, there is arranged a non-return pawl 20 having a right-angled triangular shape whose front end is perpendicular to the front-rear axis of the binding machine body 1. The front end of the check claw 20 comes into contact with the rear end edge of the binding tool 21 located at the front end of the binding tool band, and prevents the binding tool 21 from retracting.

Binding Tool Magazine The binding tool magazine 1a has a shallow dish shape and is detachably fixed to the binding machine body 1 in a state of protruding to the left side of the binding machine body 1 at the rear of the binding machine body 1. There is. The binder magazine 2 includes a circular reel mounting portion 23 for mounting the binder reel 22 having a single binding belt, and a curve extending from the rear end of the reel mounting portion 23 and extending toward the rear end of the binding machine body 1. And a narrow passage 24 for unwinding. The unwinding passage 24 is continuous with the loading opening 26 of the binding machine body 1. The binder band is easily loaded into the binder magazine 1a by the upper loading method with the reeled portion 23 being loaded from above and the unwinding portion being loaded from above into the unwinding passage 24. Can be loaded.

Trigger The trigger 2 is arranged on the left side surface of the binding machine body 1 so as to be pivotable around the shaft 70 in the front and rear of the binding machine body 1 at a position substantially facing the mounting position of the door 19. ing . A torsion coil spring 71 is attached to the shaft 70, and biases the trigger 2 in the clockwise direction in FIG. Further, the trigger 2 stands by at a position shown in FIG. 2 by a stopper (not shown) before binding the bag mouth portion.

At the front end of the trigger 2 (the left end in FIG. 2), a U-shaped upper bag mouth receiver 72 extending to the right side of the binding machine body 1 is provided. Below the upper bag mouth portion receiver 72, the lower bag mouth portion receiver 73 is provided only on the left side surface side of the binding machine body 1 so as to cover the upper end opening of the focusing groove 15 from the left side surface side of the binding machine body 1. Is provided. A substantially rectangular groove 74 is formed between the upper bag mouth part receiver 72 and the lower bag mouth part receiver 73. When the operator pushes down the trigger 2 to the lower end, the groove 74 overlaps with the slip-out preventing portion 16 at the lower end of the focusing groove 15 and forms a rectangular opening that completely surrounds the bag mouth. As a result, both wing portions 21d of the binding tool 21 can be smoothly fitted to the outer side of the bundled bag mouth portion.

On the other hand, on the binding machine main body 1 side, a limit switch type trigger switch 75 is attached below the pawl clutch 67 of the power transmission mechanism B. The trigger switch 75 starts an electric circuit (not shown) that rotates the electric motor 6 for one bundling cycle, and the lower end of the lower bag mouth receiver 73 of the trigger 2 causes the trigger switch 75 to operate. The actuator 75a is closed by being pushed down, and the electric circuit is started.

Slider Assembly As shown in FIG. 3, the slider assembly 3 is arranged in the binder band feed passage in the binding machine body 1 and is reciprocally driven in the binder band feed passage. Is used to feed the binding tool 21 to the front end of the binding tool band feed passage. The slider assembly 3 is coaxial with the cross-shaped first slider 28 driven by the eccentric pin 11 that functions as a cam, and the first slider 28, and has a compression coil spring 30 with respect to the first slider 28. And a second slider 29 in the form of a straight bar, which is assembled so as to be movable in the axial direction of the binder band feed passage. The slider assembly 3 feeds the binding band in a direction against the force of the compression coil spring 30.

The horizontal bar portion 28a of the first slider 28 is provided with a cam groove 28d which is substantially arcuate and has dead end portions 28b and 28c at both ends. The eccentric pin 11 is loosely fitted in the cam groove 28d. The front portion 28e of the first slider 28 is formed in a yoke shape. The first slider 28 reciprocates in the axial direction of the binder band feed passage by the circular movement of the eccentric pin 11 due to the rotation of the main gear assembly 9.

As shown in FIG. 5, the second slider 29 has a right side surface 29 a having a concave V-shaped cross section, and cooperates with the inner surface of the door 19 to form a star shape of the binding tool 21. Ensure that it is fed towards the focusing groove 15 with a V-shaped cross section centered on the opening 21a. At the front end portion of the second slider 29, there is a pair of slider-side first locking portions 31 having rearward facing shoulder surfaces due to different widths, and the pair of slider-side first locking portions 31 face forward toward a portion close to the slider-side first locking portion 31. And a pair of slider-side second locking portions 32 each having a shoulder surface. The slider-side first locking portion 31 is formed with a holder-side first locking portion 34 having a forward facing shoulder surface due to a difference in width, which is formed substantially at an intermediate portion between the upper and lower inner side surfaces of the binder holder 4. Disengage. The slider-side second locking portion 32 is formed as a notch in the second slider 29, and a pair of slider-side second locking portions 32 are provided in front of the second slider 29 in the axial direction. A slope 33 is formed. The slider-side second locking portion 32 engages with and disengages from a pair of pawls 35 pivotally mounted on the rear side of the binder holder 4.

A pair of slider-side third locking portions 36 having rearward facing shoulder surfaces due to different widths are formed at a portion slightly rearward of an intermediate point on the front-rear axis of the second slider 29. . The slider-side third locking portion 36 disengages from the front end surface 37 of the first slider 28.

In the feeding process of the binding tool, the second slider 29 moves the binding tool 21 located at the front end of the binding tool band through the binding tool feeding claw and cutter assembly 43, which will be described later, in the binding tool feeding path. Push to the front edge. The compression coil spring 30 stores energy so as to shorten the length of the slider assembly 3 when a load equal to or larger than a predetermined load is applied to the second slider 29. This protects the load or the binding machine from damage.

Binder Feed Claw / Cutter Assembly 43 As shown in FIGS. 3 and 4, the binder feed claw / cutter assembly 43 is provided inside the binder holder 4 with the second slider 29 of the second slider 29. From the front end, it projects forward coaxially with the second slider 29, and is arranged so as to be pivotable around a shaft 43a.

At the front part of the main body 47 of the feed claw / cutter assembly 43, a pair of left and right feed claws 44 are arranged. The feed claw 44 is inserted into the star-shaped opening 21a of the binding tool 21 located at the front end of the binding tool band, and engages with the peripheral portion of the star-shaped opening 21a.

At a position slightly retracted from the front surface of the main body 47, a pair of blade-like cutters 45 are fixed to the main body 47 of the feed claw / cutter assembly 43 by screws 46 to the outside left and right of the position of the feed claw 44. . As shown in FIG. 10, the cutter 45 has a slanted edge that recedes from the outside toward the inside. The inclined front end edge of the feed claw 44 is located in front of the inclined edge of the cutter 45.

On the left side surface of the main body 47 of the feed claw / cutter assembly 43, a slanted guide surface 48 is formed at its front end, and it is continuous with the rear end of this guide surface 48 and faces opposite to the guide surface 48. An abutment surface 49 having a gentle slope is formed.

On the other hand, a boss 50 that engages and disengages with the guide surface 48 and the contact surface 49 of the main body 47 of the feed claw / cutter assembly 43 is provided on the left side near the front end of the binder holder 4. As shown in FIGS. 3 and 11, from the state in which the slider assembly 3 and the binder holder 4 have been integrally advanced, the binder holder 4 is moved to the holder side first locking portion 38 and the main body. When the slider assembly 3 is further advanced by being stopped due to the engagement with the second side locking portion 40, the guide surface 48 and the contact surface 49 of the feed claw and cutter assembly 43 are successively formed with the boss 50. It abuts and rotates the feed claw / cutter assembly 43 counterclockwise. Thereby, the pair of cutters 45 cuts the connecting portion 21b between the binding tool 21 at the front end of the binding tool band and the binding tool 21 at the next position.

At the front end portion of the right side surface of the main body 47 of the feed claw / cutter assembly 43, an inclined surface 51 facing the right rear is formed behind the mounting position of the cutter 45. When the second slider 29 retreats, the inclined surface 51 abuts and slides on the holder-side second locking portion 52 of the binder holder 4, whereby the feed claw / cutter assembly 43 pivots to the left, The cutter 45 separates from the binding band.

Binding Tool Holder As shown in FIGS. 3 and 5, the binding tool holder 4 is a long member having a U-shaped cross section, and slides on the front portion of the second slider 29. It is freely fitted and inserted. The right side surfaces of the upper and lower portions 4a and 4b of the binder holder 4 are provided with the second slider 29 so that the binder 21 can maintain a bent posture having a V-shaped cross section with the star-shaped opening 21a as an apex. It is formed as an inclined surface continuous with the V-shaped depression on the right side.

The binder holder 4 is disposed so as to be movable with respect to the binder main body 1 in the axial direction of the feeding path of the binder band. At the rear end of the binder holder 4, a holder-side first locking portion 38 having a forward facing shoulder surface is provided. The holder-side first locking portion 38 includes a body-side first locking portion 39 having a forward facing shoulder surface provided in the binding machine body 1, and a rearward-facing portion formed in front of the body-side first locking portion 39. It engages with and disengages from the second main body side locking portion 40 having the shoulder surface.

A pair of upper and lower lateral holes 41 for accommodating a pair of claws 35 are formed in front of the holder-side first locking portion 38 in front of the holder-side first locking portion 38. A holder-side first locking portion 34 having a forward facing shoulder surface due to a difference in width is formed in front of the lateral hole 41. The holder-side third locking portion 42 disengages from the slider-side first locking portion 31 of the second slider 29.

The claw 35 is a locking means that is arranged between the slider assembly 3 and the binder holder 4 and controls the slider assembly 3 and the binder holder 4 so as to be slidable integrally or mutually. The outside of the claw 35 is brought into sliding contact with the inner surface of the binding machine main body 1 so that the binding tool 21 located at the front end of the binding tool band is fed by the binding tool feeding / cutter assembly 43. Until it is separated from the portion, the slider-side second locking portion 32 is engaged to lock the slider assembly 3 and the binder holder 4 together. The claw 35 is an outer portion of the mouth portion where the bag-like material is gathered after the binder 21 located at the front end of the binder band is separated from the other part of the binder band by the binder feeding / cutter assembly 43. The slider assembly 3 is released from the binder holder 4 by retracting into the recess 40a formed on the inner surface of the binding machine body 1 until it is fitted into the binder holder 4. As a result, the binder holder 4 is stopped from moving forward while holding the binder 21 located at the front end of the binder band in a bent shape. During this time, the pawl 35 allows the slider assembly 3 together with the binder feeding / cutter assembly 43 to move forward of the binder band feeding passage and be fitted into the outer side of the converged mouth of the bag-like object. .

Bundling Tool Entangling Mechanism As shown in FIG. 14, the binding tool entangling mechanism 5 includes a binding device main body 1 which binds the binding band at the front end of the binding band via the pull-out preventing portion 16 at the lower end of the focusing groove 15. It is provided at a position facing the tool 21.

The binding tool entanglement mechanism 5 is fixed to the disc 53 made of synthetic resin, the armrests 54 protruding rearward from the disc 53, and the binding machine body 1 integrally, and the armrests for armresting. In front of the rear end of 54, a jig 55 made of synthetic resin is projected to the rear of the disk 53, and a driven gear 56 integrally provided on the front surface of the disk 53.

As shown in FIG. 15, the armrest arm 54 has a substantially S-shaped rear surface shape, and two posts extending forward from the upper edge and the lower edge of the S-shape. It is planted in the disc 53 by the portion 54d. The arm rest 54 is curved at the central portion 54c and has a first arm portion 54a and a second arm portion 54b on both sides. As shown in FIG. 14, both side wings 21d of the binding tool 21 at the front end of the binding band are attached to the second slider of the slider assembly 3 with respect to the arm-resting arm 54 that stops rotating and waits at a fixed position. By the forward movement of 29, the first and second arm portions 54a and 54b of the armrest arm 54 are fitted to the armrest arm 54 in such a manner that they are sandwiched from the left and right (or the front and back) with the central portion 54c as a boundary.

As shown in FIG. 15, the jig 55 of the binding tool entanglement mechanism 5 has a back surface shape including an arc portion 58c and a chord portion 59a, and the arc portion 58c facing the chord portion 59a is formed. A first claw that is formed so as to partially project rearward and covers almost the entire triangular opening 21c between one wing portion 21d of the binding tool 21 and the other wing portion 21d of the binding tool 21. A circular arc portion 58c is formed so as to project rearward through a portion 58 and an arcuate opening portion 58a at a portion connected to the chord portion 59a, and receives the other wing portion 21d of the binding tool 21 from the back surface side. It is composed of the second claw portion 59. A portion other than the first claw portion 58 and the second claw portion 59 is formed as a space portion 60.

As shown in FIG. 15, when the arm rest 54 is rotated counterclockwise, the first arm portion 54 a and the second arm portion 54 b are entangled with both wing portions 21 d of the binding tool 21. The wing portions 21d are twisted counterclockwise in FIG. When the first arm portion 54 a of the armrest 54 passes the inner side surface side of the first claw portion 58 forward in the counterclockwise direction, one wing portion 21 d of the binding tool 21 entwined with the first arm portion 54 a becomes While being guided by the inner side surface 58b of the first claw portion 58, it is twisted toward the opening portion 58a, and is twisted counterclockwise by the second arm portion 54b and the second claw portion 59. When the wing portion 21d is rotated by approximately 360 ° from the state shown in FIG. 14, it is hooked.

Electric Motor The electric motor 6 is a normal DC motor.

Main Gear Assembly 9 The main gear assembly 9 is substantially the same as a generally known one, and is integrally provided on the side surface of the main gear 9a having a gear formed on the entire circumference. At the same time, the intermittent gear 10 having teeth 10a formed only in a predetermined range of the circumference is integrally provided on the side surface of the intermittent gear 10, and has a circular arc shape corresponding to the portion of the intermittent gear 10 where the teeth 10a are not formed. It comprises a control plate 10c having a collar portion 10b.

The main gear assembly 9 is such that the main gear 9 a always meshes with the output gear 8 of the reduction gear device 7, and the rotation of the output gear 8 causes the main gear 9 a to rotate counterclockwise in FIGS. 1 and 19. The slider assembly 3 is reciprocally slid in the axial direction by the eccentric movement of the eccentric pin 11 provided at the eccentric position of the main gear assembly 9.

On the circumference of the main gear assembly 9, there are a transmission gear 61 capable of meshing with the teeth 10 a of the intermittent gear 10 and transmitting torque to the binding device entanglement mechanism 5, and a torque to the bag mouth cutting mechanism 12. And a transmission gear 62 for transmitting. Both transmission gears 61 and 62 have teeth formed on their entire circumferences that mesh with teeth 10a of the intermittent gear 10, and are engaged with the collar portion 10b of the control plate 10c and stopped at a predetermined rotation angle position. Are maintained so that arcuate notches 61a and 62a are formed. These notches 61a and 62a do not hinder the meshing between the transmission gears 61 and 62 and the teeth 10a of the intermittent gear 10.

When the main gear assembly 9 is rotated counterclockwise in FIGS. 1 and 19 by the output gear 8 of the reduction gear unit 7, first, the portion of the intermittent gear 10 without the teeth 10 a is transmitted. Therefore, the transmission gear 61 is not rotated. Moreover, since the flange portion 10b of the control plate 10c is engaged with the notch 61a of the transmission gear 61, the transmission gear 61 is stopped at the predetermined rotation angle position. Therefore, the binding tool entanglement mechanism 5 is stopped at the predetermined rotation angle position. The main gear assembly 9 further rotates, the notch 61a is disengaged from the flange portion 10c, and the teeth 10a of the intermittent gear 10 mesh with the transmission gear 61. As a result, the transmission gear 61 is rotated from the predetermined rotation angle position, and at the same time, the binder entanglement mechanism 5 is also rotated from the predetermined rotation angle position. Further, in particular, as can be understood from FIG. 17, the transmission gear 62 stopped at the predetermined rotation angle position also meshes with the teeth 10a of the intermittent gear 10 at a timing slightly delayed from the transmission gear 61, so that the bag mouth cutting machine mechanism. 12 is activated. The number of teeth 10a of the intermittent gear 10 and the number of teeth of the transmission gears 61 and 62 are set to be the same. Therefore, when the main gear assembly 9 makes one rotation, the transmission gears 61 and 62 also make one rotation, and always return to their respective predetermined rotation angle positions and are stopped.

In this way, the main gear assembly 9 is operated by the binding operator by pushing down the mouth portion of the bag-like object to the pull-out preventing portion 16 at the lower end of the focusing groove 15 to push the trigger 2 and then the slider. The sequence and timing of operations among the assembly 3, the binder holder 4, the binder entanglement mechanism 5, and the bag mouth cutting mechanism 12 are determined.

Power Transmission Mechanism The power transmission mechanism B for operating the binding device entanglement mechanism 5 includes a bevel gear 64 coaxially fixed to the above-described transmission gear 61 and a bevel gear meshed with the bevel gear 64. 65, a bevel gear 65 fixed to one end, and the other end extending toward the binding device entanglement mechanism 5, and an overload prevention clutch attached to the front end of the torsion connecting rod 66. And a drive gear 68 that is coaxial with the torsion coupling rod 66 and that is arranged in front of the pawl clutch 67 and that meshes with the driven gear 56 of the binding tool entanglement mechanism 5. The claw clutch 67 has a known structure and prevents overloading of the armrest 54 of the binding tool entanglement mechanism 5. The drive gear 68 transmits torque to the driven gear 56 of the binding tool entanglement mechanism 5 via the intermediate gear 68a rotatably supported by the binding machine body 1. In the process in which the binding tool 21 is fitted into the outer side of the mouth portion where the bag-like objects are gathered and both locking wings 21d of the binding tool 21 are entangled, if a load larger than a predetermined load is applied to the power transmission mechanism B. The pawl clutch 67 operates to disconnect the power transmission relationship between the torsion connecting rod 66 and the drive gear 68. This protects the load or the binding tool entanglement mechanism 5 from damage.

Bag mouth cutting mechanism The main part of the bag mouth cutting mechanism 12 is arranged on the left side surface of the binding machine body 1. The bag mouth cutting mechanism 12 includes a sheath 76 fixed to the left side surface of the binding machine body 1 by a pin, a screw, or the like, extending to the vicinity of the rear end of the binding machine body 1, and the intermittent gear 10 of the main gear assembly 9. A transmission gear 62 that meshes with the binding machine main body 1, a D-shaped cross-section shaft 78 that crosses the binding machine body 1 in the left-right direction, a crank 79 that is connected to the shaft 78 and is disposed inside a sheath 76, and a crank that is connected to the crank 79 and extends along the sheath 76. And a connecting bar 80 extending forward, and a blade-like member that is pivotally provided at the tip of the connecting bar 80 and reciprocates back and forth in the sheath 76 by a guide (not shown) provided on the inner surface of the sheath 76. It consists of a cutter 81. The cutter 81 reciprocates back and forth in the vicinity of a position facing the slip-out prevention portion 16 of the focusing groove 15 on the left side surface of the binding machine body 1. The cutter 81 has a cutting edge formed so that the lower end thereof protrudes further forward than the upper end thereof.

[Brief description of drawings]

FIG. 1 is a right side view of a binding machine according to the present invention.

FIG. 2 is a view taken in the direction of arrow 2-2 in FIG.

FIG. 3 is a right side view showing the arrangement structure of the slider assembly, the binder holder, and the feed claw / cutter assembly, showing a state immediately before the start of feeding the binder.

FIG. 4 is a plan view showing a layout structure of a slider assembly, a binding tool holder, and a feed claw / cutter assembly, showing a state immediately before the feeding of the binding tool is started.

5 is a sectional view taken along line 5-5 in FIG.

FIG. 6 is a sectional view taken along line 6-6 in FIG.

FIG. 7 is a front view showing the arrangement structure of the slider assembly, the binder holder, and the feed claw / cutter assembly, showing the state immediately before the start of feeding the binder.

FIG. 8 is a plan view of a feed claw / cutter assembly.

FIG. 9 is a right side view of the feed claw and cutter assembly.

FIG. 10 is a front view of a feed claw and cutter assembly.

FIG. 11 is a right side view showing the arrangement structure of the slider assembly, the binder holder, and the feed claw / cutter assembly, showing a state where the feeding of the binder is completed.

FIG. 12 is a plan view showing the arrangement structure of the slider assembly, the binder holder, and the feed claw / cutter assembly, showing a state where the feeding of the binder is completed.

FIG. 13 is a front view showing a layout structure of a slider assembly, a binding tool holder, and a feed claw / cutter assembly, showing a state where feeding of the binding tool is completed.

FIG. 14 is a side view of the slider assembly showing a state in which the compression coil spring is contracted when the slider assembly is overloaded in a modification of the slider assembly.

FIG. 15 is a right side view of the binding device entwining mechanism.

FIG. 16 is a rear view of the binding device entwining mechanism.

FIG. 17 is a right side view of the binding device entanglement mechanism, and FIG.
It shows a state rotated by 90 degrees from the state shown in FIG.

FIG. 18 is a side view showing a meshing relationship between a main gear assembly and both transmission gears.

FIG. 19 is a plan view of a main gear assembly.

FIG. 20 is a side view of the power transmission system.

FIG. 21 is a plan view of a power transmission system.

FIG. 22 is a perspective view showing a state in which the binding tool is fitted into the bag mouth portion and the bag mouth portion is bound.

[Explanation of symbols]

 3 Slider Assembly 4 Binder Holder 5 Binder Entangling Mechanism 6 Electric Motor 7 Reduction Gear Device 21 Binder 21a First Opening 21c Second Opening 21d Locking Wing 28 First Slider 29 Second Slider 30 Compression Coil Spring 67 Claw Clutch B Power transmission mechanism

Claims (1)

[Scope of utility model registration request] 1. A flat plate made of an elastic material, the first opening being provided substantially in the center of the flat plate for accommodating a binding target, and the second opening extending from the first opening to the outer peripheral edge of the flat plate. Bundling tools located at the front end of a binding band formed by cascading a large number of binding tools each having an opening and locking wings provided on both sides of the tip of the second opening are sequentially bundled. In a binding machine that fits and locks on the outer side of the opened mouth, a slider assembly that drives the binding means to the front end of the binding band feed passage by being reciprocally driven in the binding means feed path. A first slider which is reciprocated by the drive means, and a binding member which is attached to the first slider and is located at the front end of the binding band so as to be movable in the axial direction with respect to the first slider. The second slider, which pushes to the front end of the binder band feeding passage, and the first slider. A slider assembly comprising a spring which is prestressed so as to reduce the length of the slider assembly in beauty second is disposed between the slider predetermined load or force,
After the both locking wings of the binding tool, which are provided at the front end position of the binding tool band feed passage and are located at the front end of the binding tool band, are inserted through the second opening of the binding tool band, By rotating around the central axis, these locking wings are hooked and entangled, and the binding tool entanglement mechanism that forms the binding tool in a substantially conical shape with the first opening as the apex and the overload prevention clutch are provided. A binding machine comprising a power transmission mechanism for transmitting power from the drive means to the binding tool entwining mechanism.