JP2003282213A - Terminal reel driving device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a terminal reel driving device for general purpose easily realizing simplification, a small size, a low cost and a light weight of a device constitution, easily applied to various terminal press-fitting machine and easily carrying out mounting to the terminal press-fitting machine. <P>SOLUTION: In this terminal reel driving device 21, a shaft 29 supporting the terminal reel 25 does not rotate, that is, a rotation power of a motor 33 is transmitted to a clamping member 37 clamping the terminal reel 25 through a power transmission mechanism 43. The motor 33 is mounted to the shaft 29 through a cylindrical shaft member 39 and a motor bracket 45. The terminal reel 25 is clamped by two clamping members 35, 37 and is integrally rotated/ driven with the clamping member 37 by the friction generated between the clamping member 37 and it. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal reel driving device provided in a terminal crimping machine and rotationally driving a terminal reel.

[0002]

2. Description of the Related Art FIG. 12 is a diagram showing the structure of a conventional terminal reel drive mechanism. In this conventional terminal reel, as shown in FIG.
As shown in FIG. 1, first and second holding members 7 and 9 for holding and fixing the terminal reel 5 are fixed to the shaft 3 rotatably supported by the support member 1, and the shaft 3 is driven by the motor 11. By rotationally driving, the terminal reel 5 is rotationally driven. That is, the terminal reel 5 is rotationally driven together with the shaft 3 supporting the terminal reel 5. Power transmission from the motor 11 to the shaft 3 is performed via gears 13 and 15 provided on the drive shafts of the shaft 3 and the motor 11, and a chain 17 wound around the gears 13 and 15.

[0003]

However, in the above-mentioned conventional technique, since the terminal reel 5 is rotationally driven by the motor 11 together with the shaft 3, the load applied to the motor 11 is large and it is difficult to downsize the motor 11. And a special structure for rotatably supporting the shaft 3 (support member 1
Etc.) are required. Further, the weight of the device is increased in order to secure the strength of the support structure for the shaft 3 and the like. Therefore, it is difficult to simplify the device configuration, reduce the size, reduce the cost, and reduce the weight.

When the terminal reel driving device of FIG. 12 is applied to a terminal crimping machine, a structure for rotatably supporting the shaft 3 and a structure for fixing the motor 11 are necessary. There is also a problem that it may be difficult to apply.

In view of the above problems, a first object of the present invention is to provide a terminal reel drive device which can easily simplify the device configuration, reduce the size, reduce the cost and reduce the weight.

A second object of the present invention is to provide a highly versatile terminal reel driving device which can be easily applied to various terminal crimping machines.

Further, a third object of the present invention is to provide a terminal reel driving device which can be easily attached to a terminal crimping machine.

[0008]

[Means for Solving the Problems] Technical means for achieving the above-mentioned object are as follows: a terminal reel is externally inserted in a rotatable state, a shaft for supporting the terminal reel, a motor, and a rotational power of the motor. And a power transmission mechanism that rotationally drives the terminal reel based on the above.

Preferably, the motor is mounted on the shaft.

[0010] Preferably, a cylindrical shaft member having a substantially cylindrical shape and externally inserted into the shaft and fixed to the shaft, and an outer peripheral portion of the cylindrical shaft member in a rotatable state. A ring-shaped rotating member that is inserted and attached and that is rotationally driven by rotational power from the motor given from the power transmission mechanism; a first sandwiching member that is externally inserted to the shaft; and externally inserted to the shaft. A second holding member that is connected and fixed to the rotating member, holds the terminal reel with the first holding member, and rotates the terminal reel by being rotated integrally with the rotating member; And a mounting member for mounting the motor on the tubular shaft member.

Further, preferably, the first holding member is fixed to the shaft, and a contact portion of the second holding member with the terminal reel is positively connected to the terminal reel. Frictional force generating means for generating a frictional force is provided, and rotational power from the motor is generated in a state where the second clamping member clamps the terminal reel between the second clamping member and the first clamping member. When driven to rotate on the basis of, the frictional force generating means generates a larger frictional force between the second holding member and the terminal reel than between the first holding member and the terminal reel. It is preferable that the frictional force drives the terminal reel to rotate integrally with the second holding member.

Preferably, the rotating member is a first pulley having no teeth, and the power transmission mechanism is a second pulley having no teeth fixed to a drive shaft of the motor, A belt having no teeth wound around the first pulley and the second pulley may be provided.

Further, preferably, the rotating member is provided with a gear portion on an outer peripheral portion thereof, and the power transmission mechanism is provided with a gear fixed to a drive shaft of the motor and meshing with the gear portion.

Further, preferably, the rotating member is a first toothed pulley, and the power transmission mechanism is a second toothed pulley fixed to a drive shaft of the motor, and the first toothed pulley.
And a toothed belt wound around the second pulley.

[0015]

1 is a front view of a terminal crimping machine to which a terminal reel driving device according to an embodiment of the present invention is applied, and FIG. 2 is a portion provided with the terminal reel driving device of FIG. FIG. 3 is an enlarged view of FIG. 3, FIG. 3 is a side view of the portion of FIG. 2, and FIGS. 4 and 5 are a cross-sectional view and a rear view of the terminal reel drive device according to the present embodiment. It should be noted that in FIG. 5, a cover 47, which will be described later, is shown by a virtual line for convenience.

In this terminal crimping machine, as shown in FIG.
Two terminal reel drive devices 21 are provided on the left and right. The terminal reel drive device 21 is for rotating and driving a terminal reel 25 around which a terminal chain 23 in which crimp terminals are connected in a chain is wound.
The terminal reel 25 is rotationally driven to positively send out the terminal chain body 23 as the wire is taken by the crimp machine body 24, and the terminal chain body 23 is loosened between the terminal reel 25 and the crimp machine body 24. Cause the terminal chain 2
The increase in tension applied to No. 3 is prevented.

More specifically, as shown in FIGS. 2 and 3, on the transport path of the terminal chain 23 between the terminal reel 25 and the crimping machine main body 24, the tension applied to the terminal chain 23 is determined. A detection member 27 whose amount of flexure changes is provided. The tension applied to the terminal chain 23 increases,
When the detection member 27 bends from the state shown by the solid line in FIG. 2 to the state shown by the phantom line, the limit switch is turned on by the deflection of the detection member 27, and the terminal reel drive device 21 rotates the terminal reel 25 in the delivery direction A by a predetermined rotation. The terminal chain 23 is sent out by being rotationally driven by an amount, and the terminal chain 23
The slack is added.

The terminal reel driving device 21 according to the present embodiment
1, is attached to a terminal reel supporting shaft (reel hanger) 29 provided in the crimping machine main body 24, as shown in FIG. The terminal crimping machine of FIG.
It has a support structure for suspending and supporting the terminal reel 25. In response to this, the shaft 29 has a substantially L-shape, and after protruding outward from the crimping machine body 24 in the left-right direction,
The terminal reel driving device 21 is attached to the lower end of the shaft 29 with the terminal reel 25.

Further, in this terminal crimping machine, as shown in FIG. 1, a winding device 31 for winding a paper strip-shaped sheet wound around the terminal reel 25 together with the terminal chain 23 is provided with a terminal reel driving device. It is equipped with 21. This winding device 31 is also attached to the shaft 29.

As shown in FIGS. 4 and 5, the terminal reel drive device 21 has a shaft 29 as a main component,
The motor 33, the first holding member 35, the second holding member 37, the tubular shaft member 39, and the rotating member (first pulley).
41, a power transmission mechanism 43, a motor bracket (mounting member) 45, and a cover 47.

The lower end portion of the shaft 29 extending downward is bent in an L shape in the horizontal direction as shown in FIG. 3, and the terminal reel drive device 21 and The terminal reel 25 is attached.

The tubular shaft member 39 is used for the terminal reel driving device 2
1 is a member that serves as a mounting base for mounting the shaft 29 on the shaft 29. As shown in FIGS. 4 and 6, the member 1 has a substantially cylindrical shape and is externally fixed to the shaft portion 29. The tubular shaft member 39 is fixed by fixing at least one (here, two) screw holes 39 provided with the tubular shaft member 39 with a thread groove.
Screw the fixing bolts 51 and 53 into a and 39b,
This is done by tightening the shaft 29.

A bearing member (bearing) 55 is provided on the outer peripheral portion of the tubular shaft member 39 located on the terminal reel 25 side.
The rotating member 41 is externally fitted in a rotatable manner via the. The rotating member 41 has a ring shape and is attached to the outer peripheral portion of the tubular shaft member 39 in a state of being rotatable about the shaft 29, and functions as a first pulley described later and a first pulley described later. It also has a function as a mounting base for the sandwiching member 37.

Further, as shown in FIG. 6, two threaded holes 39c with screw grooves for fixing the motor bracket 45 are provided on both left and right side surfaces of the tubular shaft member 39.

The motor bracket 45 is a member for attaching the motor 33 to the cylindrical shaft member 39, and has a shape as shown in FIG. 5 (rear view), FIG. 7 (side view) and FIG. 8 (plan view). The left and right side plate portions 45a have two fixing holes 45b corresponding to the screw holes 39c of the tubular shaft member 39.
They are provided one by one. Then, the motor bracket 45 is fixed to the tubular shaft member 39 by screwing the screw 57 into the fixing hole 45b and screwing it into the screw hole 39c. The motor 33 is mounted on the mount portion 45c of the motor bracket 45 in a state where the drive shaft 33a thereof is parallel to the shaft 29.
Is fixed by a fixing tool (here, a bolt and a nut) 59.

Further, the changeover switches 61, 6 are provided at the portions extending upward from both the left and right edges of the motor bracket 45.
A mounting hole 45d is provided for mounting 2 (see FIG. 5). One of the changeover switches 61 and 62 is a power switch of the device 21, and the other is a switch for switching the rotation direction of the motor 33 between forward and reverse.

Further, a condenser 64 attached to the motor 33 is attached to the lower end portion of the mount portion 45c of the motor bracket 45 via an attachment 63.

The first and second holding members 35 and 37 are members for holding and fixing the terminal reel 25 externally inserted on the shaft 29. In the present embodiment, the first holding member 35 is fixed to the shaft 29 in a state where the rotation is stopped, and the second holding member 37 is connected and fixed to the rotating member 41 so as to rotate integrally with the rotating member 41. Has become. Then, the second pinching member 37 and the first pinching member 35 are connected to each other to form the terminal reel 25.
When the second holding member 3 is driven to rotate as described later based on the rotational power from the motor 33 in a state of holding the second holding member 3
By generating a frictional force larger than the frictional force generated between the first pinching member 35 and the terminal reel 25 between the terminal 7 and the terminal reel 25, the terminal reel 25 is connected to the second pinching member 37. It is designed to rotate integrally.

More specifically, the first holding member 35 is a ring member 65 for fixing, which is externally inserted and fixed to the shaft 29.
And a reel plate 67 having a substantially disc-like shape having a hole 67a through which the shaft 29 is inserted in the central portion thereof, for sandwiching the terminal reel 25, a coil spring 69, and a set screw 71.
And are configured as a single unit.

The reel plate 67 is made of metal (such as iron) or resin. The ring member 65 is fixed by fixing the ring member 6 with the ring member 65 fitted on the shaft 29.
This is performed by screwing a set screw 71 into a screw hole 65a with a thread groove formed so as to penetrate the inside and outside of the shaft 7, and tightening the shaft 29 with the set screw 71. Coil spring 69
Is a member for urging the reel plate 67 toward the terminal reel 25, has an inner diameter that can be externally inserted to the shaft 29, and has both ends thereof at the reel plate 67 and the ring member 6.
5 are connected and fixed respectively. The ring member 65 is fixed to the shaft 29 in a state where the coil spring 69 is appropriately compressed in the direction of the shaft 29.
5 is clamped with a stable clamping force. Further, as a result, the second holding member 37 and the terminal reel 25
The frictional force generated between and is also stabilized.

The second holding member 37 is the reel plate 7
3 and a frictional force generating member (friction force generating means) 75. The reel plate 73 is made of metal (iron or the like) or resin, and has a hole 7 through which the shaft 29 is inserted in the center.
3a is provided and has a substantially disk shape, and screws 77, 7
9 is connected and fixed to the rotating member 41, and the terminal reel 2
Hold 5 The outer diameter of the reel plate 73 is set between the reel plate 73 and the terminal reel 25.
It is set larger than the outer diameter of the reel plate 67 of the first holding member 35 so as to be advantageous in generating a larger frictional force than between the terminal 7 and the terminal reel 25.

The frictional force generating member 75 is a sheet member made of rubber, sponge or the like, and is fixed to the surface of the reel plate 73 facing the terminal reel 25. When the reel plate 73 is rotationally driven, the friction generating member 75 generates a larger frictional force between the reel plate 73 and the terminal reel 25 than between the reel plate 67 and the terminal reel 25. The frictional force causes the terminal reel 25 to rotate integrally with the reel plate 73.

The power transmission mechanism 43 is a mechanism for transmitting the rotational power of the motor 33 to the rotary member 41 and the second holding member 37, and has as its constituent elements a second pulley 83 having no teeth, And a belt 85 (here, a round belt) having no teeth. The second pulley 83 is fixed to the drive shaft 33a of the motor 33 with a screw 81. The belt 85 is wound around the rotating member 41, which functions as a first pulley having no teeth, and the second pulley 83. Then, when the motor 33 is rotationally driven, the rotational power thereof is transmitted to the rotary member 41 via the second pulley 83 and the belt 85, and the rotary member 41 is rotationally driven integrally with the second holding member 37. .

The cover 47 is provided with a cutout portion 47a for inserting the shaft 29 and the motor 33, and is fixed to the motor bracket 45 from the back side by a screw 87.

With such a structure, as shown in FIG. 4, the terminal reel 25 is externally inserted onto the shaft 29 so that the first and second reels are attached.
When the motor 33 is rotationally driven while being sandwiched by the sandwiching members 35 and 37, the rotational power of the motor 33 is transmitted to the rotating member 41 by the power transmission mechanism 43, and
The holding member 37 is rotationally driven integrally with the rotating member 41. When the second holding member 37 is rotated, the friction generating member 75 generates a larger frictional force between the reel plate 73 and the terminal reel 25 than between the reel plate 67 and the terminal reel 25. The friction force causes the terminal reel 25 to rotate integrally with the reel plate 73,
The chain of terminals 23 is sent out so that slack is imparted. When the terminal reel 25 rotates along with the second holding member 37, the terminal reel 25 rotates while sliding with the reel plate 67 of the first holding member 35.

As described above, according to the present embodiment, the rotation power of the motor 33 is transmitted to the terminal reel 25 without rotating the shaft 29 supporting the terminal reel 25, that is, without passing through the shaft 29. The motor 3
3, the load on the motor 3 can be reduced, the size of the motor 33 can be reduced, and it is not necessary to rotatably support the shaft 29 supporting the terminal reel 25, and the structure supporting the shaft 29 can also be a simple structure. . As a result, it is possible to easily simplify the device configuration, reduce the size, reduce the cost, and reduce the weight.

Further, the cylindrical shaft member 39 and the motor bracket 45 are attached to the shaft 29 that rotatably supports the terminal reel 25.
Since the motor 33 is attached via the
There is no need to provide a special structure for supporting the. Therefore, if the terminal crimping machine is provided with the shaft 29 for supporting the terminal reel 25, the terminal reel drive device 21 according to the present embodiment can be easily attached and applied using the shaft 29. it can. Even if the terminal crimping machine does not have such a shaft 29, by providing the shaft 29, the terminal reel drive device 21 according to the present embodiment can be easily applied. Accordingly, it can be easily applied to various terminal crimping machines.

Further, a shaft 29 for supporting the terminal reel 25
The rotary member 4 is attached to the cylindrical shaft member 39 which is externally inserted and fixed.
1, the motor 33 is also mounted via the motor bracket 45, and the second holding member 37 is connected and fixed to the rotating member 41. Therefore, the tubular shaft member 39, the rotating member 41, the motor 33, By assembling the motor bracket 45, the second holding member 37, and the power transmission mechanism 43 in advance and then attaching them to the shaft 29, these can be handled as an integral part, and the terminal reel drive device 21 can be easily attached to the terminal crimping machine. Can be done.

Since the terminal reel 25 is clamped and fixed by the first and second pinching members 35 and 37, the first pinching member 35 can be simply attached to and detached from the shaft 29. It can be easily fixed and replaced.

Furthermore, the terminal reel 25 is driven to rotate integrally with the second holding member 37 by the frictional force generated by the frictional force generating member 75 between the second holding member 37 and the terminal reel 25. Therefore, the terminal reel 25
No special structure or work for connecting or engaging the terminal reel 25 and the second holding member 37 at the time of mounting is required, and the terminal reel 25 can be easily fixed and replaced. When the terminal reel 25 is locked, etc., the second holding member 37 is designed to be free to rotate, so that it is possible to prevent an excessive load from being applied to the drive mechanism.

Further, the pulley 83 (and the rotating member 41 which is a pulley) having no teeth in the power transmission mechanism 43 and the belt 8
5 is used, when a large load is applied to the rotation of the terminal reel 25, slippage occurs between the rotating member 41 or the pulley 83 and the belt 85, and a large load is applied to the motor 33. Can be prevented.

Further, since the belt 85 having no teeth is used, if the belt 85 is damaged, a rubber band, an O-ring or the like can be used instead to carry out the emergency treatment.

Modifications according to this embodiment will be described below.

FIG. 9 is a sectional view showing a modification of the power transmission mechanism 43. In this modified example, as shown in FIG. 9, a ring-shaped gear (gear portion) 89 is provided on the outer periphery of the rotating member 41, and the rotating member 41 functions as a gear. Further, instead of the second pulley 83, a gear (pinion gear) 91 meshing with the gear 89 of the rotating member 41 is fixed to the drive shaft 33a of the motor 33 by a screw 93, and the belt 85 is omitted. . The gear 89 is
It is fixed to the rotating member 41 by bolts 95.

In the case of this structure, since the rotational power of the motor 33 is transmitted to the second holding member 37 by the gear mechanism, the rotation of the motor 33 can be accurately transmitted to the second holding member 37.

As another modification of the power transmission mechanism 43, the rotating member 41 is a first toothed pulley, and the second pulley 83 and the belt 85 are toothed pulleys and toothed belts 85. Good. In this case,
There is an advantage that the rotation of the motor 33 can be accurately transmitted to the second holding member 37, and an advantage that grease is unnecessary.

Further, FIG. 10 is a simplified view showing a modified example of the frictional force generating means provided on the second holding member 37. This modified example assumes a case where the terminal reel 25 is made of cardboard, and instead of the frictional force generation member 75 described above, the terminal reel 25 of the reel plate 73.
A plurality of claws 97 are provided as a frictional force generating means on the surface facing to.

As a modification of the first holding member 35, the coil spring 69 may be omitted and the reel plate 67 may be directly connected and fixed to the ring member 67 to simplify the structure. Alternatively, the reel plate 67 is rotatably connected to the coil spring 69 (or the ring member 65) so that the reel plate 67 rotates along with the terminal reel 25, thereby reducing the rotational load of the terminal reel 25. Good.

Further, as a modified example of the terminal crimping machine of FIG. 1, as shown in FIG.
5 and the terminal reel drive device 21 may be supported from below. In this case, the shaft 29 is projected upward from the crimping machine body 24, and the terminal reel 2 is attached to the upper end of the shaft 29.
5 and the terminal reel driving device 21 are attached.

[0050]

According to the invention described in claims 1 to 7, the structure for transmitting the rotational power of the motor to the terminal reel without rotating the shaft supporting the terminal reel, that is, without passing through the shaft. Therefore, the load on the motor can be reduced, the motor can be downsized, and it is not necessary to rotatably support the shaft that supports the terminal reels, and the structure that supports the shaft can also have a simple structure. . As a result, it is possible to easily simplify the device configuration, reduce the size, reduce the cost, and reduce the weight.

According to the second aspect of the invention, since the motor is attached to the shaft that rotatably supports the terminal reel, it is not necessary to provide a special structure for supporting the motor. Therefore, if the terminal crimping machine is provided with a shaft for supporting the terminal reel, the terminal reel drive device according to the present invention can be easily attached and applied using the shaft. Even if the terminal crimping machine does not have such a shaft, the terminal reel drive device according to the present invention can be easily applied by providing the shaft. by this,
It can be easily applied to various terminal crimping machines.

According to the third aspect of the invention, the tubular shaft member is externally inserted and fixed to the shaft supporting the terminal reel,
Since the rotating member is attached and the motor is also attached by the attaching member, and the second holding member for holding and fixing the terminal reel is connected and fixed to the rotating member,
The tubular shaft member, the rotating member, the motor, the mounting member for mounting the motor, the second holding member, and the power transmission mechanism are assembled in advance and then mounted on the shaft, so that these can be handled as an integral part, and the terminal reel The drive device can be easily attached to the terminal crimping machine.

Further, since the terminal reel is clamped and fixed by the first and second clamping members, the terminal reel can be easily fixed and replaced.

According to the fourth aspect of the invention, the terminal reel is driven to rotate integrally with the second pinching member by the frictional force generated between the second pinching member and the terminal reel. No special structure or work for connecting and engaging the terminal reel and the second holding member at the time of mounting the terminal reel is required, and the terminal reel can be easily fixed and replaced. When the terminal reel is locked, etc., the second holding member is designed to idle, so that it is possible to prevent the drive mechanism from being unduly loaded.

According to the invention described in claim 5, since the pulley and the belt having no teeth are used for the power transmission mechanism, when the rotation of the terminal reel is heavily loaded, Alternatively, it is possible to prevent a large load from being applied to the motor due to slippage between the second pulley and the belt.

Further, since the belt having no teeth is used, if the belt is damaged, a rubber band, an O-ring or the like can be used instead to carry out the emergency treatment.

According to the sixth aspect of the invention, since the rotational power of the motor is transmitted to the second holding member by the gear mechanism, the rotation of the motor can be accurately transmitted to the second holding member. .

According to the invention described in claim 7, since the toothed pulley and the toothed belt are used for the power transmission mechanism, the rotation of the motor can be accurately transmitted to the second holding member. No need for grease.

[Brief description of drawings]

FIG. 1 is a front view of a terminal crimping machine to which a terminal reel driving device according to an embodiment of the present invention is applied.

2 is an enlarged view of a portion provided with the terminal reel driving device of FIG. 1. FIG.

3 is a side view of the portion of FIG. 2. FIG.

FIG. 4 is a sectional view of a terminal reel driving device according to an embodiment of the present invention.

5 is a rear view of the terminal reel driving device of FIG. 4. FIG.

FIG. 6 is a side view of the shaft.

FIG. 7 is a side view of a motor bracket.

FIG. 8 is a top view of the motor bracket.

FIG. 9 is a view showing a modified example of the power transmission mechanism.

FIG. 10 is a view showing a modified example of a frictional force generating means provided on a second holding member.

FIG. 11 is a diagram showing a modification of the terminal crimping machine of FIG. 1.

FIG. 12 is a diagram showing a configuration of a conventional terminal reel drive mechanism.

[Explanation of symbols]

21-terminal reel drive 23 Terminal chain 25 terminal reel 29 axes 33 motor 35 First Clamping Member 37 Second Clamping Member 39 Cylindrical shaft member 41 Rotating member (first pulley) 43 Power transmission mechanism 45 motor bracket 47 cover 75 Friction force generating member 83 Second pulley 85 belt 89, 91 gears 97 claws

Claims (7)

[Claims] 1. A terminal reel is rotatably externally inserted, a shaft for supporting the terminal reel, a motor, and a power transmission mechanism for rotationally driving the terminal reel based on rotational power of the motor. A terminal reel drive device comprising: 2. The terminal reel drive device according to claim 1, wherein the motor is attached to the shaft. 3. The terminal reel drive device according to claim 2, wherein the tubular shaft member has a substantially tubular shape and is fitted onto the shaft and fixed to the shaft. A ring-shaped rotating member that is rotatably externally attached to the outer peripheral portion and is rotationally driven by rotational power from the motor provided from the power transmission mechanism, and a first externally inserted member that is externally attached to the shaft. By sandwiching the terminal reel between the sandwiching member and the shaft, which is externally inserted into the shaft and fixedly connected to the rotating member, and is rotated integrally with the rotating member, the terminal reel is rotated. A terminal reel drive device further comprising: a second holding member for rotating the motor; and a mounting member for mounting the motor on the tubular shaft member. 4. The terminal reel drive device according to claim 3, wherein the first holding member is fixed to the shaft, and a contact portion of the second holding member with the terminal reel is provided. ,
Friction force generating means for positively generating a friction force with the terminal reel is provided, and the second holding member holds the terminal reel with the first holding member. In the state, when the rotational driving is performed based on the rotational power from the motor, the frictional force generating means causes the frictional force generating means to separate the first clamping member and the terminal reel between the second clamping member and the terminal reel. A terminal reel drive device characterized in that a frictional force larger than that between the terminals is generated, and the frictional force drives the terminal reel to rotate integrally with the second holding member. 5. The terminal reel drive device according to claim 3, wherein the rotary member is a first pulley having no teeth, and the power transmission mechanism is fixed to a drive shaft of the motor. A terminal reel drive device comprising: a second pulley having no teeth; and a belt having no teeth wound around the first pulley and the second pulley. 6. The terminal reel drive device according to claim 3, wherein the rotating member is provided with a gear portion on an outer peripheral portion thereof, and the power transmission mechanism is fixed to a drive shaft of the motor, A terminal reel drive device comprising a gear that meshes with the portion. 7. The terminal reel drive device according to claim 3, wherein the rotating member is a first toothed pulley, and the power transmission mechanism is a second pulley fixed to a drive shaft of the motor. A terminal reel drive device, comprising: a toothed pulley; and a toothed belt wound around the first pulley and the second pulley.