JP2793098B2 - Belt clamp binding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt clamp binding device for automatically winding and binding a belt clamp around an object to be bound such as a wire harness.

[0002]

2. Description of the Related Art As a binding device of this type, for example, there is a technology disclosed in Japanese Patent Application Laid-Open No. 2-168091. The binding device disclosed in this publication winds a belt portion of a belt clamp around an object to be bound such as a wire harness, and passes a belt portion through a buckle portion formed at one end of the belt portion. Are tightened by a tightening portion to perform binding. The tightening portion includes a gear that rotates in mesh with the engagement teeth of the belt portion, and the rotation of the gear causes the belt portion to be tightened. In another type of binding device, the fastening portion includes a chuck that moves linearly with a constant stroke. The belt part is grasped by this chuck,
The belt portion is tightened by moving the chuck within the range of the stroke.

[0003]

In the binding device disclosed in the above-mentioned publication, when tightening the belt clamp, the tightening force is applied only to the engaging teeth of the engaging teeth row which mesh with the gear of the tightening portion. They will be concentrated. Therefore, depending on the magnitude of the tightening force, the engagement teeth meshing with the gear may be damaged, and the gear may simply slide and rotate, and a predetermined tightening force may not be obtained. On the other hand, in the case of the tightening portion using the chuck, the problem such as the tightening portion by the gear is solved because the belt portion is firmly gripped by the chuck. On the other hand, however, since the operating stroke of the chuck is constant, it cannot be sufficiently tightened in the case of a long belt clamp, and is not applicable.

[0004] The technical problem of the present invention is to realize proper and sufficient tightening without being affected by the length of the belt clamp and the like, while avoiding breakage of the engagement teeth at the belt portion. The object is to accurately insert the belt portion into the buckle portion of the clamp.

[0005]

Means for Solving the Problems To solve the above problems, a belt clamp binding device of the present invention is configured as follows. That is, a belt clamp tying device that winds a belt portion of a belt clamp around an outer periphery of an object to be tied, and tightens the buckle formed at one end of the belt portion through the other end of the belt portion. , A guide portion for guiding the belt portion in a loop following the outer periphery of the object to be bound located in the binding space, and a belt portion facing the buckle portion near the end of the guide portion. And a tightening portion for tightening the belt portion after being passed through the buckle portion, wherein the tightening portion meshes with and engages with the engagement teeth of the belt portion to rotate. It consists of a tightening gear. Further, the tightening portion includes a plurality of rollers arranged along the longitudinal direction of the belt, a cylindrical member arranged at a fixed interval with respect to these rollers, and a cylindrical member arranged on the circumference of the cylindrical member. It may be constituted by a plurality of locking claws arranged so as to bite into the belt part by rotation drive. Further, the guide portion includes an opening for positioning an object to be bound in the binding space, and a movable guide member rotatably provided in a direction to open and close the opening. The member includes a belt guide body that guides the movement of the belt portion by holding the open portion closed during the binding operation, and a bound object guide body that supports the outer circumference of the bound object in the binding space. Have been. On the other hand, the feeding portion includes a guide groove that guides the belt portion toward the buckle portion, and a feed gear that is rotationally driven by meshing with an engagement tooth row of the belt portion passing through the guide groove. . The guide groove has an open surface for guiding the side corresponding to the inner peripheral surface of the looped belt portion, and this open surface is covered with a regulating member that retreats due to the interference of the looped belt portion. ing. In addition, the feed gear is fed with the spur gear meshing with the engaging tooth row of the belt portion when the guide groove is fed in a flat state, and the guide groove is also sent as a loop-shaped part. And a helical gear that meshes with the engagement teeth of the belt portion when the helical gear is engaged.

[0006]

According to this structure, the plurality of gears forming the tightening portion mesh with the engaging teeth of the belt portion of the belt clamp and are driven to rotate. The resulting tightening force is dispersed, and the force applied to one tooth is reduced. Therefore, a situation in which the engagement teeth are broken and the gears slide and rotate is avoided. Further, in a tightening portion that holds and holds the belt portion between a plurality of rollers and locking claws arranged on the circumference of the cylindrical member,
The tightening is performed by rotating each locking claw together with the cylindrical member while the structure is such that the belt portion can be firmly gripped, so that even a long belt clamp can be sufficiently tightened. Since the movable guide portion capable of opening and closing the open portion of the guide portion is configured to be separated into a binding object guide body and a belt guide body, the movable guide portion in a state where the open portion is opened is compact. The space is settled, and the space of the opening is sufficiently secured. During the binding operation, the belt guide body always rotates in a constant state so that the belt body sent to the guide unit can be guided in a loop, and the binding object guide body has an outer diameter of the binding object. To a position supporting this. Further, since the guide groove in the feeding portion has an open surface covered with the regulating member, the belt portion can be guided accurately toward the buckle portion, and the passage of the looped belt portion is prevented by the regulating member. Can be made to move backward. In addition, when the belt portion that has become a loop-shaped part passes through the guide groove, the helical gear of the feed dog meshes with the engagement teeth of the belt portion. Also the belt part is sent properly.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings. Embodiment 1 FIG. 1 shows a partial structure of the entire structure of the belt clamp binding device, FIG. 2 shows an external view of FIG. 1, and FIG. 3 shows the entire belt clamp binding device viewed from the opposite side of FIG. The structure is shown in the external view. As is apparent from these drawings, a motor 12 is integrally mounted on one end (upper end in use) of the housing 10 in the binding device, and the motor 12 serves as a grip of the binding device. . The other end of the housing 10 (the lower end in use) is connected to a socket fixed at each binding position of a binding object (wire harness) set thereon on a binding work table (not shown). Insertable insertion part 11
It has become. FIG. 4 is an enlarged sectional view taken along line AA of FIG. As is apparent from this drawing, a belt insertion groove 16 is formed on one side surface of the housing 10 along the vertical direction of the drawing, and a buckle passage 18 is formed on the front side of the belt insertion groove 16. I have. The belt insertion groove 16 can guide the belt portion B1 of the belt clamp B shown in FIG. 1, and the buckle passage 18 can guide the buckle portion B2 formed at one end of the belt portion B1. I have.

A belt stopper 22 is rotatably mounted on the housing 10 by a shaft 23 below the belt insertion groove 16. This belt stopper 2
A part of 2 is located in the belt insertion groove 16, and the front end of the belt portion B <b> 1 inserted from the upper end of the belt insertion groove 16 can be received at a fixed position. However, when the movable guide member 36 described later is rotated to guide the belt portion B1, the shaft stopper 23 is moved so that the belt stopper 22 also retreats from the belt insertion groove 16 in conjunction with the rotation.
Rotate around. Further, as shown in FIG. 4, a belt detecting piece 24 is provided in a part of the belt insertion groove 16 in the housing 1.
It is rotatably attached to the shaft 0 by a shaft 25.
On the other hand, as shown in FIG. 2, a limit switch 26 incorporated in a power supply circuit of the motor 12 is provided on an outer wall of the housing 10 (an outer wall of the buckle passage 18). The end of the belt detecting piece 24 is located near the plunger in the limit switch 26, and is limited by the rotation of the belt detecting piece 24 when the belt portion B1 is inserted into the belt insertion groove 16. The switch 26 is turned on.

At the lower end of the buckle passage 18, FIG.
As shown in the figure, a pair of buckle holding members 20 are rotatably attached to the housing 10 by respective shafts 21. These two buckle holding members 20 are provided with belt clamps B which have been fed to the lower end of the buckle passage 18.
Buckle portion B2 can be received, and the buckle portion B2 can be held at the receiving position by a spring force (not shown). When the housing 10 of the binding device and the belt clamp B are relatively pulled in the vertical direction after completion of the binding described later, the two buckle holding members 20 rotate in the opening direction against each other against the spring force, and the buckle portion B2 is removed from the buckle holding member 20.

The bundling apparatus according to the present embodiment includes a bundling space 28 for locating a bundling object (wire harness) below the buckle passage 18 and a belt of the belt clamp B at an outer peripheral portion of the bundling space 28. Part B1
Guide portion 30 for guiding loops in a loop, and guide portion 3
0, a feeding unit 50 for feeding the belt portion B1 toward the buckle portion B2, and a feeding portion 60 for passing the belt portion B1 through the buckle portion B2 near the end of the guide portion 30.
2 is mainly composed of a tightening portion 70 for tightening the belt portion B1 after passing through the belt 2 and a belt cutting portion 80 for cutting an excess portion of the belt portion B1 tightened by the tightening portion 70. .

First, the guide section 30 will be described.
The guide portion 30 includes a fixed guide 32 formed integrally with the housing 10 so as to form a part of the outer periphery of the binding space 28, and a movable guide member 36 rotatably attached to the housing 10. And The fixed guide 32 has a curved guide groove 33 for guiding the belt portion B1.
Between the lower part of the housing 2 and the housing 10 is an open portion 34 for positioning an object to be bound (wire harness) in the binding space 28. The movable guide member 36 is provided rotatably with respect to the housing 10 so that the opening 34 can be opened and closed.

FIG. 5 is a sectional view taken along line BB of FIG. As is clear from this drawing, the movable guide member 36 has a belt guide body 36A for guiding the belt portion B1 of the belt clamp B, and an outer periphery of a binding object (wire harness) located on both sides thereof. And a plate-shaped binding object guide body 36B to be supported. These guides 36A and 36B are mounted on a common shaft 37 so as to be individually rotatable with respect to the housing 10. Below the two guide bodies 36A and 36B,
A slide member 40 is mounted inside the insertion portion 11 of the housing 10 so as to be slidable vertically. The slide member 40 is normally pulled back to the position shown in the drawing by a spring 41 (see FIG. 1) applied between a part of the slide member 40 and a part of the insertion portion 11. A pair of levers 4 is provided at the upper end of the slide member 40.
The lower end of 2 is rotatably connected by a shaft 43. The upper ends of these levers 42 are connected to the two guides 36 described above.
A, 36B formed in each of the cam holes 38, 3
9 are respectively connected to both ends of a pin 45 inserted therethrough. A spring 44 (see FIG. 1) is applied between the levers 42 and the slide member 40.
1 is urged in the clockwise direction in FIG.

When the insertion portion 11 is inserted into the socket of the binding work table as described above, the slide member 40 is pushed up together with the lever 42 against the force of the spring 41 by the pin fixed in the socket. Can be As a result, by the action of the cam holes 39 of the binding object guide body 36B and the pins 45 inserted therein, the binding object guide body 36B is firstly moved into the binding space 28.
Rotate toward. Further, the slide member 40 is pushed up, and the pin 45 is moved to the cam hole 38 of the belt guide body 36A.
When the slide member 40 is lifted, the levers 42 rotate counterclockwise in FIG. Accordingly, the belt guide body 36A rotates in the direction to close the opening 34 following the binding object guide body 36B. Note that when the belt guide body 36A rotates in a state where the opening portion 34 is closed,
A limit switch (not shown) is turned on. This limit switch is also connected to the motor 12 together with the limit switch 26 which is switched by the belt detecting piece 24.
Are incorporated in series in the power supply circuit. Therefore, when both of these switches are turned on, the motor 1
2 starts to be driven.

Next, the supply section 50 will be described.
As shown in FIGS. 1 and 5, a support plate 52 is provided on an upper portion of the movable guide member 36 so as to be rotatable about a shaft 53 with respect to the housing 10. The support plate 52 includes a belt portion B1 of the belt clamp B.
Is rotatably supported, and a part of the outer periphery of the supply gear 56 projects into the belt insertion groove 16. The support plate 52
A spring pin 55 whose both ends extend to the outside of the housing 10 is fixed to a part of the housing 10. Between the both ends of the spring pin 55 and the member on the housing 10 side, as shown in FIGS. As shown, springs 54 are respectively engaged. Due to the elastic force of the spring 54, the support plate 52 is urged clockwise in FIG. When the belt portion B1 of the belt clamp B is inserted into the belt insertion groove 16 and comes into contact with the supply gear 56, the contact force at that time causes the support plate 52 to oppose the force of the spring 54 and rotate counterclockwise in FIG. The supply gear 56 is slightly retracted from the belt insertion groove 16. By this operation, the belt portion B1 is smoothly inserted into the belt insertion groove 16. The supply gear 56 is rotatably driven by the motor 12 through a gear transmission mechanism described later.

Next, the sending section 60 will be described. FIG. 6 is an enlarged sectional view taken along line CC of FIG. 1, and FIG. 7 is a sectional view taken along line EE of FIG. As is apparent from these drawings, near the end of the fixed guide 32 in the guide portion 30, that is, in the portion adjacent to the buckle holding member 20 in the buckle passage 18, the engagement tooth row of the belt portion B1 in the belt clamp B is provided. A meshable feed gear 62 is rotatably arranged, and a part of the outer periphery of the feed gear 62 projects into the guide groove 33a. The guide groove 33a is provided in the guide groove 33 of the fixed guide 32.
, And can guide the belt portion B1 of the belt clamp B toward the opening of the buckle portion B2 held by the buckle holding member 20. The feed gear 62 has a double structure as shown in FIGS. 1, 3 and 7, and the upper side in FIG. 1 is a spur gear 62A and the lower side is a helical gear 6
2B.

The guide groove 3 is formed with respect to the feed gear 62.
A regulating member 64 is provided rotatably by a shaft 65 on the side facing the side 3a. A ball of a ball plunger 66 is pressed against a cam surface (not shown) formed on the upper surface of the regulating member 64 by a spring force as shown in FIGS. 2 and 6. A part thereof is held at a rotation position covering the open surface of the guide groove 33a. The regulating member 64 has a loop-shaped belt portion B1 as described later.
Due to the interference at the time of passing through 3a, it turns around the shaft 65 and retreats once from the guide groove 33a, and after passing through the belt portion B1, covers the open surface of the guide groove 33a again based on the spring force of the ball plunger 66. Returned to the rotated position. The feed gear 62 is also used for the motor 1
2 is driven to rotate through a gear transmission mechanism described later.

Next, the fastening portion 70 will be described. As shown in FIG. 1, a belt passage 72 that guides the belt portion B <b> 1 after being inserted into the buckle portion B <b> 2 of the belt clamp B is formed in the housing 10 at a location facing the feeding portion 60. In the upper part of the belt passage 72, as apparent from FIGS.
A pair of gear plates 74 is rotatably mounted on a shaft 75 supported by the shaft 75. These two gear plates 7
4, tightening gears 76 and 77 are rotatably supported at two positions in a direction along the belt passage 72. FIG. 8 shows the tightening portion 70 in a partially enlarged view of FIG. As is apparent from this drawing, both of the tightening gears 76 and 77 have a part of their outer circumference projecting into the belt passage 72, and can individually mesh with the engagement teeth of the belt portion B1. . Therefore, if both the tightening gears 76 and 77 are driven to rotate in the same direction, the belt portion B1 inserted through the buckle portion B2 is tightened, and the load at the time of tightening is applied to the belt cutting portion 80 described below. When the elastic force of the spring 92 of the tightening force adjusting mechanism 90 is overcome, the gear plate 7
4 rotates together with the two tightening gears 76 and 77 around the axis 75 as shown by the phantom line in FIG. In addition, the above-mentioned two tightening gears 7
The motors 6 and 77 are also driven to rotate by a drive of the motor 12 through a gear transmission mechanism described later.

Next, the belt cutting section 80 will be described. As shown in FIGS. 1 and 4, a cutter holder having a cutter 82 for cutting the belt portion B1 after the tightening is completed, is provided above the belt passage 72 in the tightening portion 70 and on the back side of the belt insertion groove 16. 83 is mounted so as to be able to slide up and down with a predetermined stroke. As shown in FIGS. 2 and 3, the cutter holder 83 moves in the belt cutting direction (downward) together with the cutter 82 in conjunction with the downward movement of the cutter links 86 disposed on both outer sides of the housing 10. Operate.
If a grindstone is provided at a position in contact with the cutter 82, the cutter 82 is sharpened every time the cutting operation is performed. FIG. 9 is an enlarged sectional view taken along the line DD of FIG.
As is apparent from this drawing, a shaft 85 of one tightening gear 77 in the tightening portion 70 is supported by a shaft 84 through a link 84 extending downward. Both ends of the shaft 85 are located outside through vertically long holes formed in the side wall of the housing 10, and the cutter links 86 are respectively connected thereto. That is, the cutter link 86 moves downward through the link 84 and the shaft 85 due to the downward displacement of the tightening gear 77 when the gear plate 74 of the tightening portion 70 rotates toward the position of the imaginary line in FIG. Then, in conjunction with this, the cutter 82 operates in the belt cutting direction.

As is apparent from FIGS. 1 and 9, both ends of a shaft 96 arranged in parallel with the shaft 85 are supported at the lower ends of the cutter links 86. The movable spring seat 93 of the tightening force adjusting mechanism 90 of the belt portion B1 is connected. The tightening force adjusting mechanism 90 is provided above the movable spring seat 9 above a cylindrical portion formed in the housing 10.
3, and an adjustment spring seat 94 is arranged at a lower portion, and a spring 92 is incorporated between the two spring seats 93, 94. That is, the spring 92 of the tightening force adjusting mechanism 90 is
0 and the belt cutting section 80 act to hold them at the illustrated return positions. Therefore, based on the elastic force of the spring 92, the tightening force of the belt portion B1 (that is, the belt cutting timing) is determined. The elastic force of the spring 92 adjusts the position of the adjustment spring seat 94 to the adjusting screw 9.
8 can be adjusted by changing the screwing amount.

Next, a gear transmission mechanism for transmitting the drive of the motor 12 to each of the supply gear 56 of the supply section 50, the feed gear 62 of the feed section 60, and the tightening gears 76 and 77 of the tightening section 70 will be described. First, a gear transmission mechanism of the feeding unit 60 to the feed gear 62 will be described. In FIGS. 1 and 5, a gear G1 is fixed to an output shaft 14 driven to rotate by the motor 12.
As shown in FIG. 5, the rotation of the gear G1 is caused by the rotation of the shaft 7 supporting the gear plate 74 of the tightening portion 70 in mesh therewith.
And a gear G3 coaxial therewith.
Is transmitted to The gear G3 meshes with the gear G4 as shown in FIG. 3, and the rotation of the gear G4 is transmitted to a gear G5 coaxial with the gear G4. Further, the rotation of the gear G5 is transmitted to the gear G6 meshing therewith and the gear G7 coaxial therewith. The gear G7 meshes with the spur gear 62A of the feed dog as shown in FIGS. 6 and 7, whereby the feed gear 62 is driven to rotate.

Subsequently, the tightening gear 7 of the tightening section 70
1 and 5, a gear G8 is fixed to a substantially middle portion of the shaft 75 provided with the gears G2 and G3. Therefore, the gear G8 receives the rotation of the motor 12 through the gear G2 meshing with the gear G1 and the shaft 75. As shown in FIG. 1, the gear G8 meshes with the tightening gears 76 and 77, and the two tightening gears 76 and 77 are driven to rotate.

Next, the gear transmission mechanism of the supply section 50 to the supply gear 56 will be described. As shown in FIGS. 1 and 5, a gear G10 is provided on the axis of one of the tightening gears 76 in the tightening section 70. It is provided so as to rotate together with the tightening gear 76. The shaft 53 that rotatably supports the support plate 52 of the supply unit 50 is provided with a gear G11 that meshes with the gear G10 and rotates. The gear G11 meshes with a gear G12 provided coaxially with the supply gear 56 as shown in FIG. 4, and the supply gear 56 is driven to rotate together with the gear G12.

The binding operation of the belt clamp B by the binding device having the above configuration will be described. First, as shown in FIG. 1, the belt portion B <b> 1 of the belt clamp B is inserted into the belt insertion groove 16 of the housing 10 until the end of the belt portion B hits the belt stopper 22. At this time, the belt detecting piece 24 is pushed by the belt portion B1 to rotate, and the limit switch 26 shown in FIG. 2 is turned on. The wire harness to be tied is set in advance on a tying work table in accordance with the actual wiring condition, and the socket is disposed at the tying position by the belt clamp B as described above. So the housing 10
When the wire harness W is positioned as shown by the imaginary line in FIG. 10 or FIG. 11 and the insertion portion 11 of the housing 10 is inserted into the socket of the binding work table, the socket The slide member 40 is fixed by a pin fixed in the slide member 40.
Is pushed up together with the lever 42. Thereby, following the rotation of the binding object guide body 36B, the belt guide body 3
6A is rotated, and as shown in FIG. 10 or 11, the binding object guide body 36B supports the outer periphery of the wire harness W, and the belt guide body 36A is connected to the guide portion 30.
Is closed. The rotation of the belt guide body 36A causes the belt stopper 22 to move into the belt insertion groove 16.
It is rotated to the position where it has retreated from. At the same time, a limit switch (not shown) is turned on following the limit switch 26, and the motor 12 starts driving. 10 shows the case where the wire harness W has a relatively large diameter, and FIG. 11 shows the case where the wire harness W has a relatively small diameter. In any case, the binding object guide body 36B appropriately supports the outer periphery of the wire harness W. .

The driving force of the motor 12 is transmitted to the supply gear 56 of the supply section 50 through the gear transmission mechanism, and the supply gear 56 is driven to rotate while meshing with the engagement teeth of the belt section B1. . Therefore, the belt portion B1 is sent toward the guide portion 30, and is guided along the guide groove 33 of the fixed guide 32 through the belt guide body 36A which has already been rotated in a state where the opening portion 34 is closed. Specifically, as shown in FIG. 10, a loop shape surrounding the outer periphery of the wire harness W is formed. On the other hand, the buckle portion B2 of the belt clamp B moves along the buckle passage 18 as the belt portion B1 is fed, and is eventually held at a predetermined position by the buckle holding member 20 as shown in FIG. .

When the belt portion B1 guided along the guide groove 33 of the fixed guide 32 reaches the guide groove 33a of the feed portion 60, the feed gear 62, which has been rotationally driven through a gear transmission mechanism, is driven by the belt. The belt B1 is fed toward the buckle B2 while meshing with the engagement teeth on the side of the portion B1. At this time, the belt portion B1 is accurately fed toward the buckle portion B2 by the guide groove 33a and the restricting member 64 positioned so as to close the open surface thereof. In the feeding section 60, the belt section B1
10 is fed in a flat state in the guide groove 33a as shown by the solid line in FIG.
Among the spur gears 62A. Then, as shown by the imaginary line in FIG.
When the gears are fed as a part of a loop inside, the engaging teeth are meshed with the helical gear 62B of the feed gears 62. For this reason, the belt section B1 in the feeding section 60
Is the feed gear 62 until it has passed through the guide groove 33a.
Sent properly by. When the belt portion B1 passes through the guide groove 33a in a loop shape as shown by the imaginary line in FIG. 10, the regulating member 64 receives the interference of the belt portion B1 and moves away from the open surface of the guide groove 33a. Since it rotates, there is no hindrance to the movement of the belt portion B1.

The belt portion B1 inserted into the buckle portion B2 by the feeding portion 60 is sent to the belt passage 72 of the tightening portion 70. In the belt passage 72, the engagement gear train of the belt portion B1 is provided with the tightening gears 76 and 77 which are already rotationally driven through the gear transmission mechanism.
Engage with each other to tighten the belt portion B1. Therefore, the tightening force is dispersed and applied to the engaging teeth row of the belt portion B1, so that the gears do not slip due to the damage of the engaging teeth, and proper tightening is performed. When the tightening load increases, the two tightening gears 76 and 77 and the gear plate 74 that supports them tighten from the solid line state in FIG. 8 against the elastic force of the spring 92 in the tightening force adjusting mechanism 90. Rotate to a virtual line state.
As a result, as described above, the cutter 82 of the belt cutting section 80 is operated, and the belt section B1 is cut at a position slightly protruding from the buckle section B2. Is discharged to the outside.

In this manner, the outer periphery of the wire harness W is bound by the belt clamp B. When the binding device is lifted from the binding work table, the buckle portion B
Numeral 2 is detached from the buckle holding member 20, and the movable guide member 36 of the guide portion 30 rotates to the return position where the opening portion 34 is opened. Therefore, the wire harness W may be removed from the binding space 28 through the opening 34, and the operation may be shifted to the next binding operation.

Embodiment 2 FIG. 12 is a sectional view showing a fastening portion 70 having a structure corresponding to the second aspect. In this drawing, a plurality of individually rotatable rollers 100 are arranged along the belt passage 72 below the fastening portion 70 in the belt passage 72. A cylindrical member 102 is disposed at a position facing each roller 100 with the belt passage 72 interposed therebetween. The cylindrical member 102 is rotatably supported on the housing 10 together with a shaft 103 thereof. A gear (not shown) is fixed to the shaft 103, and this gear is used in the first embodiment.
Gear G8 in the gear transmission mechanism described above. Therefore, the cylindrical member 102 is driven to rotate based on the drive of the motor 12 as in the first embodiment. The cylindrical member 1
A plurality of locking claws 104 are mounted on the circumference of 02 so as to be rotatable by respective shafts 105. Further, the elastic force of the spring 106 acts on each locking claw 104, whereby each locking claw 104 is held at a rotational position where the tip end thereof substantially coincides with the outer peripheral surface of the cylindrical member 102. .

In the second embodiment, when the belt portion B1 of the belt clamp B is sent to the belt passage 72 of the tightening portion 70, the locking claw 104 of the cylindrical member 102 which continues to rotate is shown in FIG. As described above, the belt portion B1 is successively bitten, and the belt portion B1 is firmly gripped and tightened by the rollers 100 and the locking claws 104 as in the chuck type. Moreover, since this tightening is realized by rotating each locking claw 104 together with the cylindrical member 102, there is no restriction on the tightening stroke. In the second embodiment, the fastening portion 70
Other configurations are the same or similar to those of the first embodiment.

[0030]

The present invention has the following effects (1) to (4). (1) Since the tightening force applied to the engagement teeth of the belt portion at the time of tightening the belt clamp is dispersed, proper tightening can be realized while avoiding breakage of the engagement teeth. (2) According to the configuration in which the belt portion is gripped and tightened by the plurality of rollers and each of the locking claws arranged on the circumference of the cylindrical member that is rotationally driven, the belt portion can be firmly gripped. However, the operation stroke for tightening is not restricted, and a long belt clamp can be sufficiently tightened. (3) The movable guide part that can open and close the open part of the guide part,
Since the binding object guide body and the belt guide body are separated from each other, a sufficient space for the opening is ensured, and the work of positioning the binding object in the binding space becomes easy. (4) In the feeding portion, the belt portion of the belt clamp can be accurately guided toward the buckle portion, and the occurrence of binding errors can be greatly reduced.

[Brief description of the drawings]

FIG. 1 is a partially cutaway view showing the entire structure of a belt clamp binding device.

FIG. 2 is an external view of FIG.

FIG. 3 is an external view as viewed from the opposite side of FIG. 1;

FIG. 4 is an enlarged sectional view taken along line AA of FIG. 1;

FIG. 5 is a sectional view taken along line BB of FIG. 1;

FIG. 6 is an enlarged sectional view taken along line CC of FIG. 1;

FIG. 7 is a sectional view taken along line EE of FIG. 6;

FIG. 8 is an enlarged view of a configuration of a fastening portion of FIG. 1;

FIG. 9 is an enlarged sectional view taken along line DD of FIG. 1;

FIG. 10 is a configuration diagram illustrating a guide unit during a binding operation.

FIG. 11 is a configuration diagram illustrating a guide unit during a binding operation.

FIG. 12 is a cross-sectional view illustrating a tightening portion according to the second embodiment.

13 is a configuration diagram showing a part of FIG. 12 in an enlarged manner.

[Explanation of symbols]

 28 Bundling space 30 Guide part 34 Opening part 36 Movable guide member 36A Belt guide body 36B Binding object guide body 60 Sending part 70 Tightening part 76, 77 Tightening gear 100 Roller 102 Cylindrical member 104 Locking claw

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B65B 13/00-13/34 B65B 27/00-27/12

Claims (6)

(57) [Claims] 1. A belt clamp binding device for winding a belt portion of a belt clamp around an outer periphery of an object to be bound and tightening a buckle formed at one end of the belt portion through the other end of the belt portion. A binding space for locating the binding object, a guide portion for guiding the belt portion in a loop following the outer periphery of the binding object located in the binding space, and a belt portion near the end of the guide portion. A feeding portion for feeding the buckle portion, and a fastening portion for tightening the belt portion after the belt portion has been inserted into the buckle portion, wherein the fastening portion meshes with an engaging tooth row of the belt portion to rotate. A belt clamp binding device comprising a plurality of tightening gears. 2. The apparatus according to claim 1, wherein the tightening portion includes a plurality of rollers arranged along a longitudinal direction of the belt, a cylindrical member arranged at a fixed interval to the rollers, and a circumferential portion of the cylindrical member. 2. The belt clamp bundling device according to claim 1, comprising a plurality of locking claws arranged so as to bite into said belt portion sequentially by its rotational drive. 3. The device according to claim 1, wherein the guide portion includes an opening for positioning the object to be bound in the binding space, and a movable guide member rotatably provided in a direction to open and close the opening. A movable guide member, a belt guide body that guides the movement of the belt portion while holding an open portion closed during a binding operation, and a bound object guide body that supports an outer periphery of the bound object in the binding space. The belt clamp tying device according to claim 1, comprising: 4. The feeding section comprises a guide groove for guiding the belt section toward the buckle section, and a feed gear rotatably driven by meshing with an engaging tooth row of the belt section passing through the guide groove. Item 4. A belt clamp binding device according to item 1, 2, or 3. 5. A regulating portion in which the guide groove is opened at a surface for guiding a side corresponding to an inner peripheral surface of the looped belt portion, and the open surface is caused to retreat by interference of the looped belt portion. The belt clamp binding device according to claim 4, which is covered with a member. 6. The feed gear includes a spur gear that meshes with an engaging tooth row of a belt portion when the guide groove is being fed in a flat state, and a feed groove that forms the guide groove as a part of a loop. The belt clamp binding device according to claim 4 or 5, comprising a helical gear that meshes with the engagement teeth of the belt portion when the belt is engaged.