End device

Abstract

To provide a binding device that can streamline work.SOLUTION: The binding device can streamline binding work because a body 101 of a tape-pressing module 100 is inclined and provided, allowing the leading end of a second arm 5 (an arm body 11) to be slim and thus making handling in a narrow place easy.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a binding device in which, when a pair of handles are gripped, an object to be bound, which is drawn between a pair of arms, is bound by a binding tape stretched between the pair of arms. [Background technology]

[0002] There is known a pliers-type binding device in which a pair of arms rotates around a support shaft by gripping a pair of levers, and an object to be bound drawn between the pair of arms is bound by a binding tape stretched between the pair of arms. Patent Document 1 discloses a binding device in which a tape pressing mechanism (tape pressing module) is provided at the tip of a second arm (the other arm). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6226880 Summary of the Invention [Problem to be solved by the invention]

[0004] In the binding device described in Patent Document 1 (hereinafter referred to as the "conventional binding device"), the tape pressing mechanism (tape pressing module) is disposed outside the second pressure plate (tape pressurizing section) of the tape pressing mechanism, so that the accommodation space for the tape pressing mechanism protrudes outward from the tip of the second arm. As a result, in the conventional binding device, the tip of the second arm blocks the view of the worker. Also, when guiding the object to be bound between the pair of arms, the tip of the second arm gets in the way, making it difficult to work in a narrow space and reducing work efficiency.

[0005] An object of the present invention is to provide a binding device that can improve the efficiency of work. [Means for solving the problem]

[0006] The binding device of the present invention comprises a pair of arms that rotate around a support shaft by squeezing a pair of levers, and a binding device. Te a tape support mechanism for supporting a binding tape so that the binding tape can be pulled out, a tape feed mechanism provided on one arm for feeding out the binding tape pulled out from the tape support mechanism, a tape holding mechanism provided on the other arm for holding an end of the binding tape fed out from the tape feed mechanism, and a tape pressing mechanism for pressing a joint of the binding tape fed out from the tape feed mechanism, the binding device binding an object to be bound that is guided between the pair of arms with the binding tape stretched between the pair of arms, the tape pressing mechanism having a movable section provided at the tip of one of the arms and biased in a tape pressing direction, and a tape pressing section provided at the tip of the other arm for receiving the joint of the binding tape, the tape holding mechanism having an operation section provided at the tip of one of the arms, The above a tape pressing module provided at the tip of the other arm and cooperating with the operation unit, the tape pressing module having a movable member pushed in by the operation unit, a tape pressing member moving between a standby position and a tape pressing position in conjunction with the movable member, and a main body in which a mechanical unit is housed; a tip end of the other arm is disposed so as to be inclined toward an opposite side to the support shaft with respect to the tape pressing direction, The body of the tape pressing module is Te Loop pressure section The lower part is the tape pressing part. Extending from the outside to the inside into the other arm Distribution The present invention is characterized in that it is placed Effect of the Invention

[0007] According to the present invention, the work using the binding device can be made more efficient. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is a side view of the binding device according to the embodiment. [Diagram 2] 1 is a perspective view of a binding device according to an embodiment of the present invention. [Diagram 3] FIG. 2 is an exploded perspective view of components configured at the tip of the first arm. [Figure 4] FIG. 4 is a perspective view of a tip portion of a first arm. [Diagram 5] FIG. 2 is an exploded perspective view of the tape presser module. [Figure 6] FIG. 4 is an explanatory diagram of a holding force adjustment means. [Figure 7] FIG. 13 is an explanatory diagram of the tape pressing module, showing a state in which the tape pressing member is located at the tape pressing position (advance end position). [Figure 8] FIG. 13 is an explanatory diagram of the tape pressing module, showing a state in which the tape pressing member is located at a standby position (retracted end position). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] An embodiment of the present invention will now be described with reference to the accompanying drawings. As shown in Figure 1, the binding device 1 of this embodiment is a pliers-type binding device in which an object to be bound (not shown) attracted between the pair of arms 4, 5 is bound by a binding tape 7 (see Figure 2) stretched between the pair of arms 4, 5 by gripping a pair of levers 2, 3 (first lever 2, second lever 3) and rotating a pair of arms 4, 5 (first arm 4, second arm 5) around a support axis 6.

[0010] As shown in Figures 1 and 2, the binding device 1 has a tape support mechanism 21 that supports the binding tape 7 wound around a tape reel (not shown) so that it can be pulled out, a tape payout mechanism 41 that pays out the binding tape 7 guided by a tape guide plate 28, a tape crimping mechanism 51 (see Figures 3 and 4) that applies pressure to the joint portion (not shown) of the binding tape 7 to crimp it, a tape cutting mechanism 61 that cuts the vicinity of the joint portion of the binding tape 7 wound around the object to be bound, a tape holding mechanism 71 that holds the end portion of the binding tape 7 pulled out from the tape reel, and a tape regulating mechanism 91 that regulates the rewinding of the binding tape 7 pulled out from the tape reel.

[0011] The tape support mechanism 21 has a tape housing section 22 formed between the first lever 2 and the first arm 4, a spool (not shown) provided in the tape housing section 22 and onto which the binding tape 7 wound around a tape reel is attached, and a tape cover 23 that is opened when the binding tape 7 wound around the tape reel is attached to the spool. Note that the tape cover 23 is made of a highly transparent plastic such as polycarbonate.

[0012] As shown in FIG. 2, an upper side plate 24 is attached to the first arm 4. The upper side plate 24 is a sheet metal member extending along the first arm 4, and a first roller 25 (see FIG. 3) is provided at the end of the first arm 4 on the support shaft 6 side, which supports the non-adhesive surface of the binding tape 7 pulled out from the binding tape 7 wound on the tape reel (hereinafter referred to as the "binding tape 7 pulled out from the tape reel"). The first roller 25 is a plastic part, and is rotatably supported by a first shaft 26 (see FIG. 3). Both ends of the first shaft 26 are supported by the upper side plate 24. Washers 27, 27 (see FIG. 3) are attached to both ends of the first shaft 26 to prevent the first shaft 26 from moving in the axial direction relative to the upper side plate 24.

[0013] A tape guide plate 28 is provided at the end of the tip side (the front side in FIG. 2) of the upper side plate 24 to guide both widthwise ends of the binding tape 7 pulled out from the tape reel. The tape guide plate 28 is fixed to the upper side plate 24 by screws 29, 29. A second roller 30 (see FIG. 3) is provided at the tip of the tape guide plate 28 to support the non-adhesive surface of the binding tape 7 pulled out from the tape reel. The second roller 30 is the same plastic part as the first roller 25, and is rotatably supported by a second shaft 31 (see FIG. 3). Both ends of the second shaft 31 are supported by the upper side plate 24. Washers (not shown) are attached to both ends of the second shaft 31 to prevent the second shaft 31 from moving in the axial direction relative to the upper side plate 24.

[0014] 3 and 4, the tape payout mechanism 41 is configured on a mechanism mounting member 42 (see FIG. 3) attached to the upper side plate 24. The tape payout mechanism 41 has a first guide portion 43 that guides the non-adhesive side of the binding tape 7, and a second guide portion 44 that guides the adhesive side of the binding tape 7 guided by the first guide portion 43. The binding tape 7 can be inserted into the tape payout mechanism 41 between the first guide portion 43 and the second guide portion 44 by sliding the binding tape 7 to the side with a finger.

[0015] The mechanism mounting member 42 is a sheet metal member, and is fixed to the upper side plate 24 by screws 29, 29 and screws 45, 45 (only one screw 45 is shown in FIG. 3). The first guide part 43 is a sheet metal member, and a side wall 43B facing the side wall 43A on which the guide surface is formed is fixed to a movable part 52 (described later) by a screw 54. The second guide part 44 is a plastic part, and is fixed to the first guide part 43 by a screw 46. The first guide part 43 is positioned (stopped from rotating) with respect to the movable part 52 by fitting opposing protrusions 53, 53 of the movable part 52, which is a plastic part, into holes 47, 47 (only one screw 45 is shown in FIG. 3) provided in the side wall 43B.

[0016] The tape pressing mechanism 51 has an upper unit (reference number omitted) provided at the tip of the first arm 4 (one arm), and a lower unit (reference number omitted) provided at the tip of the second arm 5 (the other arm). The upper unit has the above-mentioned movable part 52, a guide 56 fixed to the mechanism mounting plate 42 by screws 57, 57, which supports the movable part 52 movably in the tape pressure direction (up and down direction in FIG. 3), and a compression coil spring 58 which biases the movable part 52 toward the lower unit (downward direction in FIG. 3) with respect to the upper side plate 24 (guide 56). A tape pressing part 55 is formed at the lower end of the movable part 52.

[0017] As the pair of arms 4, 5 rotate about the support shaft 6, the tape pressing part 55 of the upper unit descends from above the joint of the binding tape 7 and enters a square hole 60 (see FIG. 2) formed in the tape pressing part 59 of the lower unit to hold the joint of the binding tape 7. The holding force of the tape pressing part 55 on the joint of the binding tape 7 can be adjusted by the spring force of the compression coil spring 58. The upper unit also has a pressing member 66 for functionally operating the tape pressing mechanism 51.

[0018] The tape cutting mechanism 61 has a cutting blade 62 with a serrated edge formed at its tip. The cutting blade 62 is fixed to the tip of the upper side plate 24 by screws 63, 63. The cutting blade 62 rubs against a tape receiving portion 65 (see FIG. 2) of the tape pressing mechanism 51 in the tape pressure direction (a direction perpendicular to the tape pressure portion 59, that is, the direction of the axis L3 in FIG. 1), so that the vicinity of the joining portion of the binding tape 7 held by the tape pressing portion 55 is cut by the cutting blade 62.

[0019] The tape holding mechanism 71 has an operation unit 72 attached to the tip of the first arm 4, and a tape presser module 100 provided at the tip of the second arm 5 and cooperating with the operation unit 72. The operation unit 72 is fixed to the front end of the mechanism mounting member 42 with screws 73, 73. The tape pressurizing unit 59 and tape receiving unit 65 of the tape pressing mechanism 51 prevent the tape presser module 100 from moving in the direction of axis L3 in FIG.

[0020] In the tape holding module 100, when the movable member 111 is pushed into the main body 101 by the operation unit 72 on the first arm 4 side during bundling, this triggers the tape holding member 121 to operate in conjunction with the movable member 111. As a result, the head tip 122 of the tape holding member 121 enters a slit (not shown) of the tape receiving portion 65, and the end of the bundling tape 7 between the tape receiving portion 65 and the tape holding member 121 is held. On the other hand, when the bundling tape 7 is cut, when the movable member 111 is pushed into the main body 101 by the operation unit 72, this triggers the tape holding member 121 to operate in conjunction with the movable member 111, and the head tip 122 of the tape holding member 121 is pulled out of the slit of the tape receiving portion 65.

[0021] As shown in Fig. 5, main body 101 is divided into first cover 102 on one side (the "lower side" in Fig. 5) and second cover 103 on the other side, and houses the mechanical parts of tape presser module 100 inside. First cover 102 faces movable member 111, and second cover 103 faces tape presser member 121. A guide member 131 is slidably provided between movable member 111 and tape presser member 121.

[0022] A long hole 124 through which the pin 123 is inserted is formed in the base of the tape pressing member 121 (the end opposite to the head tip). The pin 123 is inserted through a pin insertion hole 132 formed in the guide member 131 and a long hole 112 formed in the movable member 111, and one end (the "lower end" in FIG. 5) is fitted into a pin fitting hole 104 formed in the first cover 102. On the other hand, the other end of the pin 123 is fitted into a pin fitting hole 105 formed in the second cover 103.

[0023] A cylindrical collar 125 is provided on the outer periphery of the portion of pin 123 between tape presser member 121 and second cover 103. One end face of collar 125 is received by tape presser member 121, and the other end face is received by second cover 103. A coil portion 142 of a torsion coil spring 141 is provided on the outer periphery of collar 125.

[0024] As shown in Fig. 6, the torsion coil spring 141 has a tip end 144 of a first arm 143 (one arm) received by a spring receiving portion 106 formed on the first cover 102, and a base end 145 of the first arm 143 received by a base of the tape pressing member 121. On the other hand, the second arm 146 of the torsion coil spring 141 is received by a rib-shaped spring receiving portion 126 formed on the tape pressing member 121. The spring receiving portion 106 of the first cover 102 has an inverted L-shaped cross section and has a first receiving portion 107 protruding from the side wall of the first cover 102 toward the second cover 103, and a second receiving portion 108 protruding inward from the end of the first receiving portion 107. For convenience, Fig. 6 shows a state in which the second arm 146 is not received by the spring receiving portion 126.

[0025] The tape holding module 100 has a holding force adjustment means for adjusting the force that holds the tape holding member 121 at the standby position (retracted end position, see FIG. 8) when the movable member 111 returns due to the spring force of the coil spring 114 after being pushed in. The holding force adjustment means is configured to adjust the force that presses the base end portion 145 of the first arm portion 143 of the torsion coil spring 141 against the base of the tape holding member 121 by adjusting the plate thickness of the second receiving portion 108 of the spring receiving portion 106, and thereby adjusting the distance between the second receiving portion 108 and the other side surface of the tape holding member 121 (the surface from which the spring receiving portion 126 protrudes).

[0026] 5, a shaft 127 protruding towards the first cover 102 (guide member 131) is provided on one side of the tape pressing member 121 (the side opposite to the side from which the spring receiving portion 126 protrudes) between the head tip portion 122 and the long hole 124. The shaft 127 passes through an L-shaped shaft engaging portion 133 formed on the guide member 131, and is engaged with a shaft engaging portion 115 formed on the movable member 111.

[0027] A spring accommodating portion 109 that accommodates a coil spring 114 is provided on the side opposite to the side on which the spring receiving portion 106 of the first cover 102 is formed (the "left side" in FIG. 6). The coil spring 114 is compressed between the side wall of the first cover 102 and the spring receiving portion 113 of the movable member 111, and biases the movable member 111 in a direction that causes it to protrude from the main body 101.

[0028] As shown in FIG. 3 and FIG. 4, the tape regulating mechanism 91 has a rib 92 formed on the operating portion 72. The rib 92 is formed in a substantially right-angled triangle and has a regulating portion 93 facing the non-guiding surface 48 of the second guide portion 44. When the joining portion of the binding tape 7 is crimped, the rib 92 moves relative to the second guide portion 44 in the tape pressurizing direction, and in the process of the relative movement with the second guide portion 44, the rib 92 pushes the second guide portion 44 toward the first guide portion 43 while sliding the regulating portion 93 on the non-guiding surface 48 of the second guide portion 44. As a result, the gap between the first guide portion 43 and the second guide portion 44 disappears, and the adhesive surface of the binding tape 7 between the first guide portion 43 and the second guide portion 44 is attached to the guide surface of the second guide portion 44 (the surface facing the non-guiding surface 48). The sliding portion of the non-guiding surface 48 of the second guide portion 44 with respect to the rib 92 is formed by an inclined surface or a curved surface corresponding to the restricting portion 93 of the rib 92 .

[0029] 1, 2, and 4, the binding device 1 has a protective member 95 that protects the mechanical components from collision (shock) with the ground plane due to a fall. The protective member 95 is provided so as to cover the part of the binding device 1 that will collide with the ground plane when the binding device 1 falls in an assumed falling posture. The protective member 95 is formed in a substantially L-shape, and is made of a plastic having high impact resistance and shock absorbing properties, such as polycarbonate. The protective member 95 has a fixing part 96 that is fixed to the upper side plate 24 provided at the tip of the arm 4, and a protective part 97 that is arranged at a certain interval between the mechanical components provided at the tip of the arm 4.

[0030] 1 and 2, the binding device 1 has an opening 8 of the first arm 4, i.e., an upper cover 35 that covers the binding tape 7 extending between the first roller 25 and the second roller 30 of the tape support mechanism 21. A tip 36 of the upper cover 35 covers the side of the mechanism provided at the tip of the first arm 4. The upper cover 35 is attached to the first arm 4 via a hinge 37 so as to be able to open and close. The upper cover 35 is made of a highly transparent plastic such as polycarbonate.

[0031] In this embodiment, the second arm 5 has a metal base 9 extending from the support shaft 6, and an arm body 11 to which a mechanical component is attached at its tip. The arm body 11 of the second arm 5 is made of a plastic having high transparency and impact resistance, such as polycarbonate. The arm body 11 has a fixing part 12 fixed to the base 9 of the second arm 5 by screws 10, 10, an attachment part 14 to which the tape pressure part 59 and the tape receiving part 65 of the tape pressing mechanism 51 and the tape pressing module 100 of the tape holding mechanism 71 are attached, and a connection part 13 that connects the fixing part 12 and the attachment part 14 in an L shape.

[0032] 1, the arm body 11 is disposed so that the axis L2 of the mounting portion 14 is substantially perpendicular to the axis L1 of the fixed portion 12 (the axis L1 of the base portion 9 of the second arm 5 passing through the center of the support shaft 6). On the other hand, the axis L3 perpendicular to the tape pressure portion 59 of the tape pressing mechanism 51, i.e., a straight line extending in the tape pressure direction, is disposed so as to be inclined toward the support shaft 6 (inward) with respect to the axis L2 of the mounting portion 14. In other words, the axis L2 of the mounting portion 14 is disposed so as to be inclined toward the opposite side (outward) from the support shaft 6 with respect to the axis L3 perpendicular to the tape pressure portion 59.

[0033] The main body 101 of the tape pressing module 100 is disposed along the axis L2 within the mounting portion 14 of the arm body 11. As a result, the main body 101 of the tape pressing module 100 is disposed within the mounting portion 14 of the arm body 11 so as to extend below the tape pressing portion 59 of the tape pressing mechanism 51 (behind the pressing surface) from the outside to the inside of the tape pressing portion 59.

[0034] At the upper end of the movable member 111 of the tape holding module 100, a contact portion 119 is formed which extends inward (toward the support shaft 6) and against which the operation portion 72 of the tape holding mechanism 71 abuts. A guide mechanism 110 is provided on the main body 101 of the tape holding module 100 and the mounting portion 14 of the arm main body 11 to guide the tape holding module 100 in the assembly direction (direction of axis L3) during assembly and to prevent the tape holding module 100 from moving in the direction away from the tape receiving portion 65, thereby ensuring the holding force of the binding tape 7.

[0035] Next, the operation of the binding device 1 will be described. First, the binding tape 7 is pulled out from the reel tape and passed between the first guide section 43 and the second guide section 44 of the tape pay-out mechanism 41, and then the pair of levers 2, 3 are gripped to rotate (close) the pair of arms 4, 5 around the support shaft 6. When the pair of arms 4, 5 are closed and then slightly returned, the tape presser member 121 of the tape presser module 100 advances, and the head tip 122 of the tape presser member 121 enters a slit (not shown) of the tape receiver 65 from above the binding tape 7. As a result, the end of the binding tape 7 protruding from the tape pay-out mechanism 41 is held between the tape receiver 65 and the tape presser member 121.

[0036] Next, when the pair of levers 2, 3 are returned to the fully open position, the binding tape 7 pulled out from the reel tape is stretched between the pair of arms 4, 5. In this state, the binding device 1 is moved toward the object to be bound (not shown), and the binding tape 7 stretched between the pair of arms 4, 5 is pushed toward the support shaft 6 by the object to be bound. As a result, the object to be bound is drawn between the pair of arms 4, 5, and the binding tape 7 is pulled out from the reel tape.

[0037] Next, when the pair of levers 2, 3 are gripped, the tape pressing portion 55 of the tape pressing mechanism 51 enters the rectangular hole 60 of the tape pressing mechanism 51 from above the joint portion of the binding tape 7, and the joint portion of the binding tape 7 wound around the object to be bound is held. In parallel with this, the tape pressing member 121 of the tape presser module 100 retreats, and the head tip portion 122 of the tape pressing member 121 is pulled out of the slit (not shown) of the tape receiving portion 65. Then, at the timing when the pair of arms 4, 5 are completely closed, the joint portion of the binding tape 7 is pressed by the tape pressing mechanism 51, and the vicinity of the joint portion of the binding tape 7 held by the tape pressing portion 55 of the tape pressing mechanism 51 is cut by the cutting blade 62 of the tape cutting mechanism 61.

[0038] On the other hand, when the second guide portion 44 of the tape feed-out mechanism 41 is pressed by the rib 92 during the process in which the joint portion of the binding tape 7 is pressed by the tape pressing mechanism 51, the tape regulating mechanism 91 narrows the gap between the first guide portion 43 and the second guide portion 44. As a result, the adhesive surface of the binding tape 7 between the first guide portion 43 and the second guide portion 44 sticks to the guide surface of the second guide portion 44, and the binding tape 7 is held within the tape feed-out mechanism 41 with its end portion (the pressing portion of the tape pressing member 121) protruding from the tape feed-out mechanism 41.

[0039] Then, when the pair of levers 2, 3 are operated to hold the end of the binding tape 7 by the tape holding mechanism 71 in order to perform the binding work continuously, the end of the binding tape 7 is in a position facing the slit (not shown) of the tape receiving portion 65. In this state, by inserting the head tip portion 122 of the tape pressing member 121 into the slit of the tape receiving portion 65, the end of the binding tape 7 pulled out from the tape reel is securely held between the tape receiving portion 65 and the tape pressing member 121. Furthermore, since the gap between the first guide portion 43 and the second guide portion 44 is narrowed by the tape regulating mechanism 91, when the binding tape 7 is cut, the binding tape 7 is pressed between the first guide portion 43 and the second guide portion 44 and is firmly fixed.

[0040] In the conventional binding device, the tape pressing module is located outside the tape pressing part of the tape pressing mechanism (in front of the operator), so the storage space for the tape pressing module in the second arm protrudes outward from the tip of the second arm, blocking the operator's view. Also, when guiding the object to be bound between the pair of arms, the tip of the second arm protruding outward becomes an obstacle, making it difficult to work in a narrow space, and reducing work efficiency.

[0041] In contrast, in this embodiment, the main body 101 of the tape pressing module 100 is positioned at an angle within the mounting portion 14 of the arm body 11 so that the lower side (the back side of the pressing surface) of the tape pressure applying portion 59 of the tape pressing mechanism 51 extends from the outside to the inside of the tape pressure applying portion 59, so that the tip portion of the second arm 5 (arm body 11) does not protrude outward (forward as viewed by the operator). According to this embodiment, the tip of the second arm 5 does not obstruct the worker's view, so the bundling work can be performed efficiently. Also, in this embodiment, highly transparent plastic is used for the arm body 11 and the upper cover 35, so it is possible to improve the visibility of the object to be bound, and the bundling work can be performed efficiently. Furthermore, in this embodiment, highly transparent plastic is also used for the tape cover 23, so it is possible to visually check the remaining amount of binding tape 7, and usability can be improved. In addition, in this embodiment, the main body 101 of the tape pressing module 100 is arranged at an angle, so that the tip portion (arm main body 11) of the second arm 5 can be slimmed down. This makes it easy to handle the binding device 1 in a narrow space, and makes the binding work more efficient.

[0042] 7, when the tape pressing module 100 is in the tape pressing state, the tape pressing member 121 is located at the tape pressing position (advance end position), and the shaft 127 of the tape pressing member 121 is located in the first groove 116 of the shaft engagement portion 115 of the movable member 111. In this state, when the movable member 111 is pushed in, the guide portion 117 of the shaft engagement portion 115 is pressed against the shaft 127, and the shaft 127 moves along the guide portion 117. As a result, the tape pressing member 121 rotates counterclockwise in FIG. 7 around the pin 123, and moves to the standby position (retracted end position, see FIG. 8).

[0043] 8, when movable member 111 is pushed in and then returned by the spring force of coil spring 114, the horizontal component in Fig. 8 of the spring force of torsion coil spring 141 (see Fig. 5) acting on shaft 127 (hereinafter referred to as "spring force A") acts on tape press member 121. On the other hand, the force that holds tape press member 121 in the standby position (retracted end position) described above, that is, the vertical component in Fig. 8 of the spring force of torsion coil spring 141 acting on shaft 127 and frictional resistance with guide member 131 (hereinafter referred to as "holding force B") acts on tape press member 121.

[0044] Here, when the holding force B of the tape holding member 121 is greater than the spring force A, the shaft 127 of the tape holding member 121 does not move towards the first groove 116 (forward movement side), and as the movable member 111 is returned, the shaft 127 moves to the second groove 118 of the shaft engagement portion 115 of the movable member 111. As a result, the tape holding member 121 is held in the standby position, and the tape holding module 100 operates normally.

[0045] In contrast, when the holding force B of the tape holding member 121 is smaller than the spring force A, the shaft 127 of the tape holding member 121 moves toward the first groove 116 (the forward movement side). As a result, the tape holding member 121 moves forward to the tape holding position, and the tape holding module 100 malfunctions and does not return to the standby position.

[0046] Therefore, in the past, in order to make the holding force B of the tape pressing member greater than the spring force A, a rib was provided on the main body cover and the frictional resistance between the tape pressing module and the guide member was controlled by managing the clearance between the rib and the guide member. With this conventional technology, it was difficult to generate a stable holding force B because the frictional force was affected by the shape (dimensions) of the rib.

[0047] In contrast to this, in this embodiment, a holding force adjustment means is provided that adjusts the holding force B of the tape holding member 121 by adjusting the force with which the base end 145 of the torsion coil spring 141 is pressed against the tape holding member 121, so that it is possible to more directly control the frictional force and generate a stable holding force B, thereby preventing operational failure of the tape holding module 100 not returning to the standby position. Also, the holding force B (frictional force) can be easily and flexibly controlled by varying the plate thickness of the second receiving portion 107 of the spring receiving portion 106 of the first cover 102.

[0048] 5, the tape presser module 100 functions well when the plate thickness tolerances of the sheet metal members, the tape presser member 121, the guide member 131, and the movable member 111, are negative tolerances. However, when the tolerances are positive tolerances, the frictional force acting between the members becomes excessively large, causing malfunction. Therefore, in this embodiment, the use of screws to fasten the first cover 102 and the second cover 103 of the main body 101 is eliminated, and the tape pressing module 100 is configured so that the positive tolerance of the sheet metal material is absorbed by flexing the first cover 102 and the second cover 103. This makes it possible to ensure stable operation of the tape presser module 100 regardless of whether the plate thickness tolerance of the plate metal member is on the plus or minus side. [Explanation of symbols]

[0049] REFERENCE SIGNS LIST 1 bundling device, 2 first lever, 3 second lever, 4 first arm, 5 second arm, 6 support shaft, 21 tape support mechanism, 41 tape payout mechanism, 51 tape pressing mechanism, 52 movable portion, 59 tape pressure portion, 71 tape holding mechanism, 72 operation portion, 100 tape pressing module, 101 main body, 111 movable member, 121 tape pressing member

Claims

1. a pair of arms that rotate about a support shaft by gripping a pair of levers; a tape support mechanism that supports the binding tape so that it can be pulled out; a tape payout mechanism provided on one arm that pays out the binding tape paid out from the tape support mechanism; a tape holding mechanism provided on the other arm that holds an end of the binding tape paid out from the tape payout mechanism; and a tape crimping mechanism that crimps a joint of the binding tape paid out from the tape payout mechanism; the tape pressing mechanism includes a movable part provided at a tip of the one arm and biased in a tape pressing direction, and a tape pressing part provided at a tip of the other arm and receiving a joint of the binding tape, the tape holding mechanism includes an operating unit provided at a tip end of one arm, and a tape pressing module provided at a tip end of the other arm and cooperating with the operating unit; the tape pressing module includes a movable member that is pushed in by the operation unit, a tape pressing member that moves between a standby position and a tape pressing position in conjunction with the movable member, and a main body that houses a mechanism unit; a tip end of the other arm is disposed so as to be inclined toward an opposite side to the support shaft with respect to the tape pressing direction, A binding device characterized in that the main body of the tape presser module is positioned within the other arm so as to extend below the tape pressure section from the outside to the inside of the tape pressure section.

2. 2. The binding device according to claim 1, the tape pressing module includes a torsion coil spring that biases the tape pressing member toward the tape pressing position, and a holding force adjustment means that adjusts a force that holds the tape pressing member at a standby position when the movable member returns after being pushed in, A binding device characterized in that the holding force adjustment means is configured to adjust the holding force of the tape pressing member by adjusting the force pressing one arm of the torsion coil spring against the tape pressing member.

3. The binding device according to claim 1 or 2, A binding device, characterized in that at least a part of the pair of arms or the tape support mechanism is made of a transparent material.

Images