JPH10202754A - Ultrasonic stapler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize the quick and effective melting and miniaturize a whole body and reduce the number of parts of the stapler by a method wherein a working face is formed normal to the vibrating direction of a ultrasonic vibration transmitting through a horn part and a switch is installed on a gripping member and, at the same time, respective connecting lines are uniformly arranged only in the gripping member. SOLUTION: An upper frame 4 as a gripping member holes an ultrasonic vibrator 2 and a horn part 3 integrally at one end part of it. At the horn part 3, a working face 31 is formed normal to the center axis direction of the horn part 3. At welding, ultrasonic vibration is transmitted to the center axis direction of the ultrasonic vibrator 2 from the ultrasonic vibrator 2 so as to vibrate the working face 31 normal to the working face. In this ultrasonic stapler 10, since all the ultrasonic vibrator 2, a limit switch 45 and a cord line are installed in the upper frame 4, respective connecting lines L1, L2, L3 and L4 are brought into a state being all indirectly connected with the upper frame 4 or the respective wirings are arranged convergently to one member or the upper frame 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an ultrasonic stapler, and more particularly, to an ultrasonic stapler suitable for hand-held work.

[0002]

2. Description of the Related Art FIG. 10 shows a conventional example. This conventional example,
An ultrasonic vibrator 101 for oscillating ultrasonic vibration, a horn 102 for amplifying the ultrasonic vibration, an upper frame 103 for integrally holding these at one end thereof,
A lower frame 105 having a tip 104 rotatably engaged with the other end of the upper frame 103 and having a pressing surface 104A at the rotating end thereof, which is opposed to the side surface of the tip of the horn 102; 103 and the lower frame 105 are individually covered from the outside, and the upper frame 1 is faced to each other.
03 and two covers 106 and 107 having a U-shaped cross section, respectively, provided on the lower frame 105 and a switch 108 for switching between driving and stopping the ultrasonic transducer 101.
And an ultrasonic stapler 100 including a plurality of connection lines L for connecting the ultrasonic transducer 101 and the switch 108 to an external ultrasonic oscillator (not shown).

As shown in FIG. 11, the upper frame 103 and the lower frame 105 are each formed in a U-shaped cross section, and both have parallel side walls facing each other from the bottom surface. And the interval of each side wall is set wider in the upper frame 103,
With the inner surface of each side wall of the upper frame 103 and the outer surface of each side wall of the lower frame 105 being in contact with each other, the connection pin 109 is inserted into a through hole uniformly provided in each side wall, and the upper frame 103 and the lower The frame 105 is connected at the right end in FIG. 10 and is rotatable.

The connecting pin 109 connects the lower frame 105 to the upper frame 103 and the horn 10
The torsion coil spring 110 (not shown in FIG. 11) for rotating the tip 104 in a direction in which the tip 104 is separated from the side surface of the tip portion 2 is also held.

[0005] Reference numeral 111 denotes a cord bush, which has a tubular structure through which each connection line L is inserted uniformly, and an engagement groove 111 perpendicular to the cord insertion direction is formed on the outer peripheral surface thereof.
A is formed, and the cover 10 is
6 fixed.

The ultrasonic stapler 100 has a processing surface 102A on the side surface near the tip of the horn portion 102, and the object to be processed is sandwiched between the processing surface 102A and the pressing surface 104A by ultrasonic welding. I do. Since the processing surface 102A is formed in a side surface of the horn portion 102, that is, in a direction along the vibration direction T of the ultrasonic vibration transmitted through the horn portion 102, the workpiece is formed by sliding friction generated by vibration in the same direction. The welding is performed by heat melting.

[0007]

However, in the above-mentioned conventional example, the processing surface 10 along the vibration direction T of the horn portion 102 is not provided.
Since 2A was formed, the power loss was large, and the transmission efficiency of ultrasonic vibration to the workpiece was poor. For this reason, a large-sized ultrasonic vibrator 101 having a large output must be used, which hinders miniaturization and weight reduction of the apparatus. Further, in order to transmit the ultrasonic vibration more, the lower frame 105 has to be strongly drawn to the upper frame 104 side.

In the conventional ultrasonic stapler 100, since the workpiece is slid, the finished shape of the workpiece after welding is likely to be disturbed, which is not suitable for a product whose appearance is regarded as important. And the possibility of causing a decrease in strength after welding.

Further, in the ultrasonic stapler 100, the ultrasonic vibrator is moved to the upper frame 104 side by the switch 1
08 is installed on the lower frame 105 side,
Each connection line L is branched and wired to a plurality of members. For this reason, when assembling the ultrasonic stapler 100, the connecting lines L connected to the respective parts limit the assembling operation range of the respective members (for example, the upper frame 103 and the lower frame 105). Care had to be taken, leading to a drop in productivity.

Further, since the cover 107 has a U-shaped cross section, especially when the cover 107 is a molded product of plastic or when both side walls are high, the tips of both side walls are inward. In such a case, the cover 107 may come into contact with the upper frame 103 and hinder the rotation of the lower frame 105 in such a case.

Further, the ultrasonic stapler 100 includes:
When the axial width of the torsion coil spring 110 is smaller than the distance between both side walls of the lower frame 105, the torsion coil spring 110 falls down as shown in FIG. Since the pin 109 cannot be inserted, the torsion coil spring 1 may be used in advance by using a jig or tweezers.
10 had to be fixed. That is, this has led to a decrease in productivity.

The chip 10 having the pressing surface 104A
4 is fixed to the lower frame 105 by a set screw 104B.
03 is the member to which the ultrasonic vibrations are most transmitted, so that wear is apt to occur, and frequent replacement is required. However,
In the ultrasonic stapler 100, the set screw 104B
Is inside the cover 107, so that at least the removal of the cover 107 is indispensable for replacement of the chip 104, which is very complicated. In addition, even when assembling the ultrasonic stapler 100, the tip 104 could not be retrofitted, resulting in poor productivity.

Further, the conventional ultrasonic stapler 10 described above.
In FIG. 14, as shown in FIG. 14, the cord bushing is provided in the semicircular notch provided in both the cord bush holding portion 106 </ b> A and the holding member 112 provided at the end opposite to the horn portion 102 of the cover 106. 111 engagement groove 111A
And the holding member 1 is further fixed by the set screw 112A.
12 is fixed to the cord bush holding portion 106A, so that the cord bush 111 is held.
A complicated mounting operation is required at the time of assembling, which leads to a reduction in productivity and an increase in the number of parts.

[0014]

SUMMARY OF THE INVENTION It is an object of the present invention to improve the disadvantages of the prior art and, in particular, to provide an ultrasonic stapler with good productivity.

[0015]

According to the first aspect of the present invention, there is provided an ultrasonic vibrator which oscillates ultrasonic vibration, a horn part which amplifies the ultrasonic vibration and has a processing surface at a tip end thereof, and And a pressing member having a pressing surface that is rotatably engaged with the other end of the gripping member and that has a pressing surface opposed to the processing surface of the horn portion at the rotating end. The member and the gripping member and the pressing member are respectively covered from the outside in a shape corresponding to each of them, and two covers each having a U-shaped cross-section provided respectively on the gripping member and the pressing member in a state where they face each other. , A switch for switching between driving and stopping of the ultrasonic transducer, and a plurality of connection lines for connecting the ultrasonic transducer and the switch to an external ultrasonic oscillator.

The working surface is formed perpendicular to the vibration direction of the ultrasonic vibration transmitted through the horn portion, a switch is provided on the grip member, and each connection line is uniformly wired only to the grip member. Has been adopted.

In this configuration, the workpiece is sandwiched between the processing surface at the tip of the horn portion and the pressing surface of the pressing member, and ultrasonic vibration is generated from the ultrasonic vibrator. Such ultrasonic vibration is amplified in the horn part, and ultrasonic vibration is transmitted to the workpiece from the processing surface located in front of the vibration propagation direction,
Dissolution occurs in the workpiece, which in turn causes welding.

According to a second aspect of the present invention, there is provided an ultrasonic vibrator which oscillates ultrasonic vibration, a horn part which amplifies the ultrasonic vibration and has a processing surface at a tip end thereof, and these are integrally formed. A gripping member held at one end, a pressing member rotatably engaged with the other end of the gripping member, and a pressing surface having a pressing surface opposed to a processing surface of the horn at the rotating end; The pressing members are respectively covered from the outside in a shape corresponding to the pressing members, and the grip members and the pressing members are provided with a cross section U
It has two letter-shaped covers, a switch for switching between driving and stopping the ultrasonic vibrator, and a plurality of connection lines for connecting the ultrasonic vibrator and the switch to an external ultrasonic oscillator.

The processing surface is formed perpendicular to the vibration direction of the ultrasonic vibration transmitted through the horn portion, and both covers have two parallel side walls facing each other, and the pressing member is held against the gripping member. The connection pins are rotatably connected by connection pins, and the connection pins are set to a length substantially equal to the interval between the insides of the side walls of the cover.

With this configuration, the same operation as that of the first aspect is performed.

According to a third aspect of the present invention, the gripping member and the pressing member are formed in a U-shaped cross section, and two parallel side walls facing each other are formed. The gripping member and the pressing member are formed so that each side wall of the gripping member and the pressing member is slightly smaller than the other side wall, and a connecting pin is provided for each side wall of the gripping member and the pressing member. By uniformly penetrating the mating hole, the gripping member and the pressing member are connected, and the connecting pin is
A torsion coil spring for rotating the pressing member in a direction in which the processing surface and the pressing surface are separated from each other is provided, and between the torsion coil spring and the connecting pin, the inside of each of the narrower side walls of the gripping member and the pressing member is provided. A configuration is adopted in which a tube-shaped inner collar having a length substantially equal to the interval is inserted.

In this configuration, when the gripping member and the pressing member are connected by the connecting pin during the assembly, the inner collar is inserted in advance inside the torsion coil spring. Then, in this state, the inner collar is disposed between the narrower side walls of either the gripping member or the pressing member, and the opening of the inner collar is positioned in the engagement hole provided in the both side walls. Thereafter, the connecting pin is inserted into the engagement holes of both the grip member and the pressing member and the inner collar. In addition, when used after assembly, the same operation as in the first aspect of the present invention is performed.

According to a fourth aspect of the present invention, there is provided an ultrasonic vibrator which oscillates ultrasonic vibration, a horn part which amplifies the ultrasonic vibration and has a machined surface at a tip end thereof, and these are integrally formed. A gripping member held at one end, a pressing member rotatably engaged with the other end of the gripping member, and a pressing surface having a pressing surface opposed to a processing surface of the horn at the rotating end; The pressing members are respectively covered from the outside in a shape corresponding to the pressing members, and the grip members and the pressing members are provided with a cross section U
It has two letter-shaped covers, a switch for switching between driving and stopping the ultrasonic vibrator, and a plurality of connection lines for connecting the ultrasonic vibrator and the switch to an external ultrasonic oscillator.

The working surface is formed perpendicular to the vibration direction of the ultrasonic vibration transmitted through the horn, and the pressing surface is
A set screw mounting hole is formed at the rotating end of the pressing member on the surface of the chip equipped with a set screw, and a hole for attaching and detaching a set screw is provided at a position corresponding to the set screw of the cover mounted on the pressing member from the outside to the pressing member. At the same time, a configuration is adopted in which a projection is provided around the set screw mounting / detaching hole of the cover so as to protrude along the set screw insertion / removal direction.

With this configuration, when assembling or replacing a worn tip, the set screw for fixing the chip from the set screw attaching / detaching hole is loosened or tightened without removing the cover from the pressing member, and the chip is removed or removed. Installation is performed. Then, at the time of use, the same operation as the first aspect of the invention is performed.

According to a fifth aspect of the present invention, there is provided an ultrasonic vibrator which oscillates ultrasonic vibration, a horn part which amplifies the ultrasonic vibration and has a processing surface at a tip end thereof, and these are integrally formed. A gripping member held at one end, a pressing member rotatably engaged with the other end of the gripping member, and a pressing surface having a pressing surface opposed to a processing surface of the horn at the rotating end; The pressing members are respectively covered from the outside in a shape corresponding to the pressing members, and the grip members and the pressing members are provided with a cross section U
It has two letter-shaped covers, a switch for switching between driving and stopping the ultrasonic vibrator, and a plurality of connection lines for connecting the ultrasonic vibrator and the switch to an external ultrasonic oscillator.

The processing surface is formed perpendicular to the vibration direction of the ultrasonic vibration propagating through the horn, and the inside of the cover on the gripping member side is opposed to the outer wall of one end of the cover, and the one end of the cover is An outer wall and a holding wall inclined with respect to the outer wall at one end are provided so that the distance between the outer wall and the other cover becomes smaller in a direction away from the other cover, and the distance between the outer wall at the one end and the holding wall is reduced. A groove-shaped notch is provided from the edge of the outer wall toward the side, and a notch for inserting each connection line is provided in the holding wall, and each connection line is formed into a tubular shape through which the connection line is inserted. The cord bushing for holding each connection line having an inclined groove on the outer peripheral surface thereof at an angle equal to the inclination angle of the holding wall with respect to the outer wall of the one end with respect to the end surface of the one end is provided with the outer wall of the one end and the holding wall To equip between It has taken.

In this configuration, at the time of assembly, the cord bush is mounted on the cover on the gripping member side in a state where the connecting wires are inserted together. That is, the end face of one end of the cord bush is brought into contact with the holding wall, and the cord bush is inserted along the notch so that the inclined groove corresponds to the notch provided on the outer wall of one end of the cover. Since the outer wall of the one end and the holding wall are inclined with respect to each other so that the distance between the outer wall and the holding wall decreases in the direction in which the cord bush is inserted (in the direction away from the cover on the pressing member side), the cord bush is inserted. Accordingly, the end face of one end thereof is pressed from the holding wall, and the contact portion of one end of the inclined groove with the outer wall is pressed from the outer wall, whereby the cord bush is clamped and mounted on the cover.

Each connection line inserted into the cord bush is guided to the inside of the cover through a notch for insertion of each connection line provided on the holding wall at one end of the code bush. It has become so. When the ultrasonic stapler is used, the same operation as that of the first aspect is performed.

The above-mentioned configuration is intended to achieve the above-mentioned object.

[0031]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.
This will be described with reference to FIGS.

In the present embodiment, an ultrasonic vibrator 2 that oscillates ultrasonic vibration, a horn 3 that amplifies the ultrasonic vibration and has a processing surface 31 at the end thereof, and these are integrally formed. An upper frame 4 serving as a gripping member held at one end, and rotatably engaged with the other end of the upper frame 4, and a processing surface 31 of the horn portion 3 is attached to the rotating end.
A lower frame 5 as a pressing member having a chip 51 provided with a pressing surface 51A facing the upper surface, and upper and lower frames 4 and 5 which are individually covered in a shape corresponding to each other and face each other. A U-shaped upper cover 6 and a lower cover 7 mounted on the upper frame 4 and the lower frame 5, respectively; a limit switch 45 as a switch for switching between driving and stopping the ultrasonic vibrator 2;
The ultrasonic stapler 10 includes a plurality of connection lines L1, L2, L3, and L4 that connect the ultrasonic oscillator 2 and the limit switch 45 to the ultrasonic oscillator T outside the ultrasonic stapler 10.

Hereinafter, the ultrasonic stapler 10 will be described in more detail.

First, the ultrasonic vibrator 2 and the horn 3 will be described. The ultrasonic vibrator 2 is of a small size that is integral with the horn 3 and is used in the vertical direction in FIG. And the overall length is short and miniaturized.

The ultrasonic vibrator 2 includes a ceramic ring 21 disposed in contact with the upper end of the horn 3 (the end opposite to the processing surface 31), and electrodes disposed sequentially above the ceramic ring 21. It comprises a plate 22, a ceramic ring 23, an electrode plate 24, a tail mass 25, and embedded bolts (not shown) for integrally fastening and fixing these together with the horn portion 3. Each configuration of these ultrasonic transducers 2 is uniformly set to have substantially the same outer diameter, and when integrally fixed, a cylindrical shape having a uniform outer diameter is formed.

The two electrode plates 22 of the ultrasonic transducer 2
24 has connection terminals protruding in the radial direction, respectively, to which connection lines L1 and L2 are connected, and further to the outside of the ultrasonic stapler 10 via the connection lines L1 and L2. It is connected to an ultrasonic oscillator T (FIG. 3). When a voltage having a predetermined oscillation frequency is applied from the ultrasonic oscillator T, ultrasonic vibration is generated from the ultrasonic transducer 2. This ultrasonic vibration is transmitted to the horn part 3,
The processed surface 31 is amplified and vibrates in a direction perpendicular to the processed surface 31.

The horn portion 3 has a processing surface 31 formed in a flat shape at the lower end in FIG. 1, and a cylindrical portion 32 having a relatively small diameter and a cylindrical portion 34 having a relatively large diameter have a substantially conical shape. A flange 35 having a flange shape is provided between the large cylindrical portion 34 and the ceramic ring 21 of the ultrasonic vibrator 2 and is connected to each other through an intermediate portion 33 formed by the intermediate portion 33. The diameter of the large cylindrical portion 34 is
The size is set to be equal to the outer diameter of the ultrasonic transducer 2 described above.

The ultrasonic vibrator 2 and the horn 3 are of an integral type as described above, and the flange 35 is provided at a position substantially at the middle of the total length of the ultrasonic vibrator 2 and the horn 3. As shown in FIG. 2, the ultrasonic vibrator 2 and the horn 3 are held by the upper frame 4 by the flange 35, so that the ultrasonic vibrator 2 and the horn 3 are vertically balanced with respect to the flange 35. Therefore, it is possible to eliminate the influence of vibration due to disturbance and perform ultrasonic welding satisfactorily.

The horn portion 3 has a processing surface 31 formed perpendicular to the center axis direction thereof. When welding is performed, ultrasonic vibration is applied by the ultrasonic vibrator 2 in the center axis direction. The vibration is transmitted and vibrates the processing surface 31 in the vertical direction. In other words, the entire processing surface 31 transmits ultrasonic vibration to the workpiece by repeating continuous pressing,
As a result, the workpiece is melted and welded.

The horn portion 3 is entirely formed of aluminum (using aluminum 7075), and the small cylindrical portion 32 of the horn portion 3 including the processing surface 31 is 4 mm from the tip. 4 on the surface to the position
A layer of 0 [μm] hard alumite (for example, using the trademark “KASHIMA COAT” manufactured by Miyaki Group) is formed.

Therefore, the weight of the entire horn portion 3 is reduced, and the hardness of the tip of the horn portion 3 is improved, and the corrosion resistance and the lubricity are improved. In particular, this horn part 3
Is difficult to replace because it is integrated with the ultrasonic vibrator 2, but the high hardness increases the wear resistance of the tip of the horn part 3 and extends the life, thereby complicating the replacement. Is eliminated. Further, it is possible to prevent the oscillation frequency of the ultrasonic wave from being shifted and the output from being lowered due to wear of the tip. Further, by improving the corrosion resistance, it is possible to prevent the occurrence of corrosion at the tip of the horn portion 3, to prolong the service life, and to prevent a decrease in output due to corrosion. In addition, it is possible to effectively prevent the adhesion of the melted workpiece by improving the lubricity.

Next, the upper frame 4 and the lower frame 5 will be described. The upper frame 4 and the lower frame 5 are formed of long metal flat plates having side walls 4D and 4E and side walls 5D and 5E (see FIG. 6) and whose cross sections are bent into a substantially U-shape. With the U-shaped openings facing each other, they are rotatably connected to each other at one end in the longitudinal direction with the connection pin 11 as a rotation fulcrum.

As shown in FIG. 2, the upper frame 4 is provided with a through hole 41 for holding the horn 3 which penetrates the plate surface in the vertical direction in the vicinity of the rotating end.
The through hole 41 has an inner diameter that is set to be larger than the outer diameter of the large cylindrical portion 34 of the horn portion 3 and smaller than the outer diameter of the flange 35, and is a square rubber insertion member having an insertion hole in the center. The horn part 3 is inserted from the front end side via 43. Then, the fixing bracket 42 clamps the flange 35 from above, and the horn 3 and the ultrasonic vibrator 2
Is fixed such that the center axes of the ultrasonic transducer 2 and the horn 3 are perpendicular to the flat surface of the upper frame 4.

Here, as shown in FIG. 4, the fixing bracket 42 is provided with a circular hole 42A at the center of a square metal plate whose length of each side is substantially equal to the width of the upper frame 4. A cutout 42B is formed from a part of the circumference of the hole 42A toward the outside. Since the fixing bracket 42 fixes the ultrasonic oscillator 2 and the horn 3 to the upper frame 4 with the ultrasonic oscillator 2 inserted into the circular hole 42A from above, the electrode plate Notches 42B somewhat wider than the connection terminals are provided so that the connection terminals 22 and 24 and the connection lines L1 and L2 connected thereto do not hinder insertion. Therefore, the mounting of the fixing bracket 42 is facilitated, and the productivity of the ultrasonic stapler 10 can be improved.

Further, since the notch 42B is provided, the diameter l ₃ of the circular hole 42A of the fixing bracket is set to the total size l ₂ of the diameter of the electrode plates 22, 24 and the length of the connection terminal.
It is not necessary to make it larger than (FIG. 4B), and it can be set to a size between the outer diameters l ₁ and l ₂ of the electrode plate (l ₁
> L ₃ > l ₂ ), in particular, by setting the diameter l ₃ of the circular hole 42A substantially equal to l ₁ , the size of the circular hole 42A can be set smaller. Accordingly, the outer diameter of the flange 35 of the horn portion 3 can be made smaller (because the outer diameter of the flange 35 needs to be at least larger than the diameter of the circular hole 42A). 4 can be made smaller, and the entire ultrasonic stapler 10 can be reduced in size.

4A, reference numerals 42C, 42D,
42E and 42F are square fixing brackets 42.
These screw holes are provided at each of the corners. These screw holes are screwed into set screws 42a inserted into insertion holes provided at respective corresponding positions around the through hole 41 of the upper frame 4. That is, the fixing bracket 42 is fixed to the upper frame 4 by screws from all sides.

At this time, since one side of the square shape of the fixing bracket 42 is divided by the notch 42B, the flange 35 of the horn portion 3 has three sides corresponding to the remaining sides of the fixing bracket 42. The horn portion 3 is held between the points, and is held in a more stable state.

Further, as shown in FIG. 1, the upper bracket 4 is provided with a switch bracket, which is erected toward the lower frame 5 at a position slightly closer to the connection pin 11 than at the middle in the longitudinal direction. A limit switch 45 is provided via 44. The limit switch 45 has a switch contact 45A that is turned on when turned in the V direction. When the lower frame 5 is turned toward the upper frame 4, the limit switch 45 is connected to the upper frame 4. The tip-shaped inclined surface of the dock 52 as a switch application means that stands up toward the side contacts the switch contact 45A and rotates in the V direction. With this operation, the limit switch 45
Is turned on, the ultrasonic oscillator T connected to the limit switch 45 via the connection lines L3 and L4 is driven, and the ultrasonic vibrator 2 starts ultrasonic vibration via the connection lines L1 and L2. I do.

Each of the above connection lines L1, L2, L3, L4
Is a code C outside the ultrasonic stapler 10.
Are wired to the ultrasonic oscillator T in a state in which all of them are included at once. Each of the connection lines L1, L2, L3, and L4 is connected to the ultrasonic oscillator T by a connector K provided at an end of the code line C on the ultrasonic oscillator T side.

The opposite end of the code line C is fixed by a holder 46 near the end of the upper frame 4 on the side of the rotation fulcrum. The holding tool 46 is mounted on the surface (the lower surface in FIG. 1) of the upper frame 4 facing the lower frame 5 by screwing. From the end of the code line C, the connection lines L3 and L4 are connected to the limit switch 45. And are connected to each other.
L2 is wired to the ultrasonic vibrator 2 along the upper surface of the upper frame 4 through a rubber and annular cord bush 48 provided in a wiring through hole 47 provided through the upper frame 4. I have.

As described above, in the ultrasonic stapler 10,
Ultrasonic transducer 2, limit switch 45 and code line C
Are all provided in the upper frame 4, so that the connection lines L1, L2, L3, and L4 are all indirectly connected to the upper frame 4, that is, each wiring is concentrated on one member of the upper frame 4. It is in the state wired.
For this reason, in the assembling process, if each wiring is connected in advance to each configuration provided in the upper frame 4,
Thereafter, the complexity of considerations such as prevention of breakage of each wiring at the time of assembly work is reduced, and assembling work becomes easier and productivity is improved as compared with a case where each connection line is dispersedly connected to a plurality of members. Can be improved.

The lower frame 5, which is rotatably connected to the upper frame 4 at one end by a connecting pin 11, has a pressing surface 51A directed toward the upper frame 4 at the rotating end. In this state, the chip 51 is mounted by the set screw 5C. The tip 51 is disposed at a position where its pressing surface 51A comes into contact with the processing surface 31 of the horn portion 3 by the rotation of the lower frame 5 toward the upper frame 4, and the pressing surface 51A is
It is formed so as to be substantially parallel to the processing surface 31 at the time of closest or contact with the processing surface 31.

FIG. 5 is a front view of the chip 51 (FIG. 5).
(A)), a left side view (FIG. 5B) and a plan view (FIG.
(C)). This chip 51 has a substantially rectangular parallelepiped overall shape, and the entire lower surface portion 51C in FIG.
It is screwed in contact with the side facing surface (the upper surface in FIG. 1). Reference numeral 51D denotes a screw hole for this, and as shown in FIG. 5C, is provided substantially at the center of the upper frame 4 side facing surface of the entire chip 51. Therefore, even when ultrasonic vibration is transmitted through the workpiece when the ultrasonic stapler 10 is used when the ultrasonic stapler 10 is used, the vibration sound is generated due to the fluttering of the tip 51. Effectively prevent. Accordingly, ultrasonic vibration can be transmitted in a state where the contact between the processing surface 31 and the workpiece is effectively maintained, and efficient ultrasonic welding can be performed.

On the upper surface of one end of the tip 51 (the tip 51 is mounted on the lower frame 5 with the end facing the rotating end of the lower frame 5), the processed surface of the horn 3 is provided. The three protruding portions 51 in a state of protruding toward the
B is formed. Each of these convex portions 51B is shown in FIG.
5A is a rail shape along the longitudinal direction of the chip 51, and is arranged along the width direction of the chip 51 (perpendicular to the longitudinal direction). The upper end surface of each of the rail-shaped convex portions 51B has the above-described pressing surface 5B.
1A, and an inclined surface 51Ba is formed around the pressing surface 51A. That is, as shown in FIG. 5 (A), each convex portion 51B is formed in an equilateral trapezoidal shape with the pressing surface 51A as an upper side.
Due to the inclined surface 51Ba, the workpiece and the chip 51 are easily separated from each other during the processing, and the workability is improved.

The tip 51 has a hard alumite layer (for example, using the trademark “KASHIMA COAT” manufactured by Miyaki Group) on its surface, similarly to the tip of the horn portion 3. Therefore, the hardness of the pressing surface 51A, the corrosion resistance and the lubricity are improved.

FIG. 6 shows the upper cover 6 and the lower cover 7 when the ultrasonic stapler 10 is viewed from the right side in FIG.
FIG. 2 is a side view in which a portion near the connecting pin 11 is cut away. The code line C is not shown. As shown in the figure, the width of the upper frame 4 is set somewhat wider than that of the lower frame 5, and the side walls 4D and 4E of the upper frame 4 around the connecting pin 11 are connected to the side walls 5D of the lower frame 5. , 5E are connected to the lower frame 5.

The upper cover 6 and the lower cover 7 are also plastic molded products having a U-shaped cross section, and each of them is set wider than the upper frame 4. The upper cover 6 is screwed to the upper frame 4 so as to cover from above the upper frame 4, and the lower cover 7 is screwed to the lower frame 5 so as to cover from below the lower frame 5.

The connecting pins 11 are respectively provided with engaging holes 4a, 5a provided in the side walls 4D, 4E of the upper frame 4 and the side walls 5D, 5E of the lower frame 5 overlapping each other.
(See FIG. 2: the engagement holes 4E and 5E are not shown), and the length thereof is set substantially equal to the interval between the insides of the side walls 7D and 7E of the lower cover 7. .
By setting the length to such a length, there is an effect that deformation of the side walls 7D and 7E of the lower cover 7 is prevented. That is, as described above, the lower cover 7 is a plastic molded product. If the height of each of the side walls 7D and 7E is equal to or higher than a predetermined value, the tip of each of the side walls 7D and 7E tends to be deformed inward after the formation. Has properties. Therefore, the side walls 7D and 7E of the lower cover 7 are deformed by such deformation.
May contact the side walls 4D and 4E of the upper frame 4 and cause sliding, which may hinder the rotation of the lower frame 5 with respect to the upper frame 4. Side wall 7 of lower cover 7
D and 7E are supported from the inside to prevent deformation. Further, since the connecting pin 11 has such a length, the lower cover 7 is mounted on the lower frame 5 after connecting the frames 4 and 5, so that the connecting pin 11 is prevented from dropping in the insertion direction. It is supposed to be.

The connecting pin 11 is connected to the upper frame 4
Direction in which the lower frame 5 and the lower frame 5 are separated from each other (the processing surface 3
1 has a function of holding a torsion coil spring 12 which is a return spring that urges the rotation in the direction in which the pressing surface 51A is separated from the pressing surface 51A. The torsion coil spring 12 extends both ends of a wire forming the coil spring, and both ends extending from the center axis direction of the coil spring form a V-shape. It comes into contact with the upper frame 4 and the lower frame 5 to urge the return force. The coupling pins 11 are inserted through the coil-shaped portions (coil spring portions) of the torsion coil springs 12 so that the torsion coil springs 12 are mounted on the frames 4 and 5.

An inner collar 13 having an insertion hole at the center is inserted between the coil-shaped portion of the torsion coil spring 12 and the connecting pin 11. This inner color 1
3 has an outer diameter somewhat smaller than the inner diameter of the coiled portion of the torsion coil spring 12, has an inner diameter somewhat larger than the outer diameter of the connecting pin 11, and has a length inside each side wall of the lower frame 5. It is a tubular member set substantially equal to the interval. The inner collar 13 is inserted into the coil-shaped portion of the torsion coil spring 12 in advance during the assembling process of the ultrasonic stapler 10, and both ends of the inner collar 13 are inserted into connection pins provided on both side walls 5 </ b> D and 5 </ b> E of the lower frame 5. The connecting pins 11 are mounted in such a state that they are arranged in correspondence with the through holes 5a. With this inner collar 13, the torsion coil spring 12 can be effectively prevented from falling down, and the torsion coil spring 12 can be held in a predetermined position in a stable state inside the lower frame 5, thereby requiring tools such as tweezers. It is possible to easily attach the connecting pin 11 without any need, and it is possible to improve productivity. At the same time, the inner collar 13 can prevent the torsion coil spring 12 from sandwiching each connection line.

Here, in FIG. 6, a gap is shown between the inner collar 13 and both side walls 5D and 5E of the lower frame 5, but by setting the length such that the gap does not occur, the torsion coil spring is formed. 12 can be held more effectively.

Reference numeral 5A shown in FIGS. 6 and 1 is a rotation restricting projection, and reference numeral 4A is its receiving member. That is, when the upper frame 4 and the lower frame 5 are opened at a certain angle from each other, these rotation restricting projections 5A
Abuts against the receiving member 4A to prevent it from opening further. The rotation restricting projections 5A are appropriately set in advance with the restricting angles by the receiving member 4A and the torsion coil spring 12 described above, so that the working surface 31 and the pressing surface 51A are always kept at a constant distance from each other. This makes it possible to immediately start the welding work, thereby improving workability.

Next, the upper cover 6 and the lower cover 7 will be described. As described above, the upper cover 6 is an exterior component having a U-shaped cross section and an opening at the lower side that covers and includes the upper frame 4 from above,
It has two parallel side walls facing each other. Then, as shown in FIG. 1, the upper cover 6 is fixed to the upper frame 4 with two screws. An enclosing space 6A is formed on the rotating end side (left side) of the upper cover 6 so as to enclose the ultrasonic transducer 2 mounted on the upper frame 4, and the other end side (right side).
Is equipped with a cord bush 14 for inserting and holding the above-described code wire C inside.

FIG. 7A is a partial cross-sectional view of the other end of the upper cover 6. FIG. 7B is a diagram of the other end of the upper cover 6 as viewed from the right side.
An inclined wall 6B (an outer wall at one end) is formed at the right end of the upper cover 6, and a holding wall 6C is formed inside the upper cover 6 near the inclined wall 6B. A groove-shaped notch 6D is formed in the inclined wall 6B upward from the lower end in FIG. 7B, and the cord bush 14 is mounted along the insertion direction U along the notch 6D. Is done.

The distance between the inclined wall 6B and the holding wall 6C becomes narrower toward the insertion direction U of the cord bush 14 (the direction away from the lower cover 7). Therefore, the inclined wall 6B and the holding wall 6C are not parallel to each other, and the inclined wall 6B is inclined at a certain angle with respect to the holding wall 6C. The code 6E is a code bush 14.
It is a notch for insertion of the code wire C at the time of mounting,
The width is set to be larger than the outer diameter of the code line C and smaller than the width of a vertical end surface 14A of the code bush 14, which will be described later. The notch 6E is located on the same vertical line as the notch 6D and the holding wall 6C.

On the other hand, as shown in FIG. 8, the cord bush 14 is a tubular body made of an elastic material (rubber, synthetic resin, or the like) into which the code line C is inserted. A vertical end face 14A (an end face of one end) perpendicular to the first end is formed on one end side (left end side). The other end (right end) is provided with a constriction 14C whose outer diameter decreases somewhat toward the end, and whose outer diameter increases again at the end. It is also possible to attach a band having a ring for wall hanging to 14C.

The inclined groove 1 is formed on the outer peripheral surface at the intermediate portion of the cord bush 14 so as to follow the peripheral end of the cross section along a plane inclined at a predetermined angle with respect to the vertical end surface 14A.
4B is formed. Here, the inclined surface with respect to the vertical end surface 14A is set to be equal to the angle formed by the holding wall 6C and the inclined wall 6B in the upper cover 6 described above. That is, the inclined groove 14
B is inclined by the above angle with respect to the vertical end surface 14A when viewed from a predetermined direction orthogonal to the central axis of the cord bush 14 (FIG. 8A). The groove width of the inclined groove 14B is set equal to the thickness of the wall surface of the inclined wall 6B.

As shown in FIG. 7C, the cord bush 14 is inserted in the insertion direction U by engaging the inclined groove 14B with the notch 6D of the upper cover 6. Since the inclined wall 6B and the holding wall 6C of the upper cover 6 are inclined with respect to each other so that the distance between them becomes smaller as it goes in the insertion direction U, as the cord bush 14 is inserted, the vertical end surface 14A becomes the holding wall. 6C, the inner surface of the inclined groove 14B abuts against the inclined wall 6B, and receives a pressing force from each of these abutting portions. Therefore, the cord bush 14 is held by the upper cover 6 by the pressing force. Accordingly, when the cord bush 14 is attached to the upper cover 6, means such as a holding tool or a screw is not required, so that the number of parts can be reduced and productivity can be improved. The angle formed by the inclined wall 6B and the holding wall 6C is more desirably an angle slightly inclined than the parallel state, and is 45 [゜] or less, more strictly 30 [゜]. The following is desirable.

The sectional shape of the cord bush 14 is not limited to a circle, but may be, for example, a polygon (square diameter, hexagon, etc.). In this embodiment, the cord bush 14 is made of an elastic material. However, the cord bush 14 is made of a hard material, and the inclined wall surface 6B and the holding wall 6C of the upper cover 6 are made of an elastic material or a material having flexibility. May be formed.

Next, the lower cover 7 will be described.
As described above, the lower cover 7 is an exterior component having a U-shaped cross section and being open at the top, which includes the lower frame 5 so as to cover the lower frame 5 from below, and has two parallel side walls 7D and 7E facing each other. I have. The distance between the side walls 7D and 7E is set equal to the distance between the side walls of the upper cover 6 described above. And the lower cover 7
As shown in FIG. 1, the vicinity of the end on the rotation fulcrum side is screwed, and a locking claw 7A provided near the rotation end and protruding toward the lower frame 5 is adapted to correspond to the lower frame 5. And is fixed to the lower frame 5 by engaging with a locking hole 5 </ b> B provided at a position where the lower frame 5 is located.

The lower end of the lower cover 7 (left side)
9A is a partial cross-sectional view of FIG. FIG. 9B is a right sectional view near the chip 51. The rotating end of the lower cover 7 has a portion corresponding to the set screw 5C for fixing the chip 51 to the lower frame 5 described above uniformly lower than the other portions (the set screw 5C is moved from the lower frame 5 to the lower frame 5). Projection 7B projecting in the direction of removal)
A set screw attaching / detaching hole 7C penetrating from the outside of the lower cover 7 to the set screw 5C mounted on the lower frame 5 along the protruding direction is provided.

The protrusion 7B forms the hole 7C for attaching and detaching the set screw sufficiently deep, so that the head of the set screw 5C is completely shielded from the outside. For this reason, even when the heat of the tip 51 is conducted to the set screw 5C during the ultrasonic welding, it does not come into contact with the hand of the operator of the ultrasonic stapler 10, which does not hinder the work. . Further, when the ultrasonic stapler 10 is held in a hand by the protruding portion 7B, the protruding portion 7B serves as a non-slip and prevents the position of the handle from being shifted to the horn 3 side of the ultrasonic stapler 10. , Workability is improved.

Further, since the set screw attaching / detaching hole 7C is provided, replacement of the consumable chip 51 with the lower frame 5 can be performed.
This can be performed easily and quickly without removing the lower cover 7, and complicated work can be eliminated, and the workability can be further improved.

The operation of the ultrasonic stapler 10 having the above configuration will be described below.

The ultrasonic stapler 10 is connected to an ultrasonic oscillator T via a connector K of a code line C as shown in FIG. Then, with respect to the workpiece, the workpiece is formed by the processing surface 31 at the tip of the horn portion 3 and the pressing surface 51 of the tip 51.
The user holds the ultrasonic stapler 10 at a position between the upper frame 4 and the lower frame 5 toward the upper frame 4. With the proximity of the processing surface 31 and the pressing surface 51A, the switch 52 of the limit switch 45
A is turned in the V direction and is turned on. This allows
The voltage of the transmission frequency from the ultrasonic oscillator T is applied to the ultrasonic vibrator 2, and the ultrasonic vibrator 2 generates ultrasonic vibration. The ultrasonic vibration is transmitted in the central axis direction of the horn 3 while being amplified by the horn 3,
The processing surface 31 is vibrated in the vertical direction.

Further, by pulling the lower frame 5 toward the upper frame 4, the workpiece is
1 and the pressing surface 51A, ultrasonic vibration is transmitted from the processing surface 31 to the workpiece. As a result, the workpiece is melted, and welding is performed by pressing the processing surface 31 and the pressing surface 51A.

In this embodiment, the processing surface 31 of the horn 3
Is formed so as to be perpendicular to the vibration direction of the ultrasonic vibration transmitted through the horn portion 3, so that the entire processing surface 31 transmits ultrasonic vibration to the workpiece by repeating continuous pressing. As a result, compared with the conventional case where the workpiece is melted by sliding, the ultrasonic vibration is efficiently transmitted to the workpiece, and the melting can be quickly and effectively performed. I have.

As a result, it is possible to use a small ultrasonic transducer having a small output, and it is not necessary to provide a means for increasing the pressing force of the pressing surface, and the ultrasonic stapler 10 can be reduced in size. It has become possible.

In the present embodiment, the ultrasonic vibrator 2 and the horn 3 are provided perpendicular to the longitudinal direction of the upper frame 4, but the ultrasonic vibrator 2 and the horn 3 You may equip it in the state inclined by minutes.

[0080]

According to the first aspect of the present invention, since the processing surface of the horn is formed so as to be perpendicular to the vibration direction of the ultrasonic vibration transmitted through the horn, the entire processing surface is continuous. The ultrasonic vibration is transmitted to the workpiece by repeating the pressing, which makes it possible to efficiently apply the ultrasonic vibration to the workpiece as compared with the conventional case where the workpiece is melted by sliding. It is possible to cause the dissolution quickly and effectively.

As a result, it is possible to use a small ultrasonic vibrator having a small output, and it is not necessary to provide a means for increasing the pressing force on the pressing surface. It is possible to reduce the score.

Further, in the present invention, since all the ultrasonic vibrators and switches are provided on the gripping member, all the connection lines are intensively wired to one member called the gripping member. For this reason, in the assembling process, after each connecting wire is connected to each component provided on the gripping member, the complexity of consideration for preventing breakage of each wire at the time of assembling work is reduced, and the number of each wire is reduced. As compared with the case where the members are dispersedly connected to the members, the assembling work is facilitated, and the productivity can be improved.

According to the second aspect of the invention, the same effect as the first aspect of the invention is obtained in that the ultrasonic vibration is efficiently transmitted to the workpiece and the ultrasonic stapler is reduced in size and weight. Further, since the length of the connecting pin is set to be substantially equal to the interval between the insides of the respective side walls of the cover, when the side walls of the cover are going to deform inward, they come into contact with the respective side walls, This has the effect of preventing deformation. This effect is particularly effective when the cover is made of a molded product such as plastic, or when each side wall is high. And, by preventing deformation of both side walls, it is possible to effectively avoid a situation in which the cover comes into contact with a gripping member or a pressing member inside the cover,
The workability of the ultrasonic stapler can be maintained satisfactorily.

Further, since the cover is prevented from being deformed, there is no need to provide a rib structure or the like inside the cover, which contributes to an improvement in the productivity of the ultrasonic stapler. Furthermore, by setting the connecting pin to such a length, the cover has the effect of preventing the connecting pin from dropping in the insertion direction after the grip member and the pressing member are connected.

According to the third aspect of the invention, the same effects as the first aspect of the invention are obtained in that the ultrasonic vibration is efficiently transmitted to the workpiece and the ultrasonic stapler is reduced in size and weight. Further, since an inner collar having a length substantially equal to the inner space between the side walls of the grip member or the pressing member, which is smaller, is inserted between the torsion coil spring and the connection pin. During the assembling process of the sonic stapler, by pre-inserting the torsion coil spring, it is possible to effectively maintain the state in which both ends correspond to the respective engagements for inserting the connection pins provided on each side wall. it can. For this reason, it is possible to effectively prevent the torsion coil spring from falling down, to easily attach the connecting pin without using an instrument such as tweezers, and to improve the productivity of the ultrasonic stapler. At the same time, the inner collar can also prevent each connection wire from being pinched by the torsion coil spring, thereby effectively preventing disconnection of each connection wire and improving the maintainability of the ultrasonic stapler. It becomes possible.

According to the fourth aspect of the invention, the same effects as the first aspect of the invention are provided in that the ultrasonic vibration is efficiently transmitted to the workpiece and the ultrasonic stapler is reduced in size and weight. In addition, since a set screw attaching / detaching hole penetrating from the outside of the cover to the pressing member is provided at a position corresponding to the set screw of the chip of the cover on the pressing member side,
It is not necessary to remove the cover when attaching and detaching the chip, and the attaching and detaching operation can be performed easily and quickly, so that productivity can be improved. In particular, since the tip is easily worn and frequently replaced, the detachment is easy and quick, so that complicated work can be eliminated and the workability can be improved.

Further, by providing a protrusion protruding along the set screw insertion / removal direction around the set screw attaching / detaching hole, the set screw attaching / detaching hole is formed sufficiently deep. Completely shielded from the outside. For this reason, even when heat generated in the chip is transmitted to the set screw during ultrasonic welding, the heat does not come into contact with the hand of the operator of the ultrasonic stapler, and this does not hinder the operation.

Further, when the ultrasonic stapler is held in a hand by the protruding portion, the protruding portion serves as a non-slip, so that the ultrasonic stapler can be gripped satisfactorily without shifting the position of the handle. The workability is improved.

According to the fourth aspect of the invention, the same effect as the first aspect of the invention is obtained in that the ultrasonic vibration is efficiently transmitted to the workpiece and the ultrasonic stapler is reduced in size and weight. Further, an outer wall at one end of the cover and a holding wall opposed to the outer wall in a state of being inclined at a certain angle with respect to the outer wall are provided, and between the outer wall and the holding wall, with respect to one end face thereof. A cord bush having an inclined groove formed at the same angle as the above-described holding wall on the outer periphery is inserted in a state where the inclined groove is engaged with the notch provided on the outer wall. Therefore, the cord bush is equipped with the code bush being effectively sandwiched between the outer wall and the holding wall of the cover in accordance with the insertion of the code bush.

Thus, when the cord bush is mounted on the cover, means such as a holder and a screw are unnecessary, so that the number of parts can be reduced and the productivity can be improved.

Since the present invention is configured and functions as described above, it is possible to provide an excellent ultrasonic stapler which has not been conventionally provided.

[Brief description of the drawings]

FIG. 1 is a sectional view of an ultrasonic stapler according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a part of the ultrasonic stapler.

FIG. 3 is a perspective view showing a state where an ultrasonic stapler and an ultrasonic oscillator are connected.

4A and 4B are diagrams for explaining a relationship between dimensions of a fixing bracket and an electrode plate. FIG. 4A shows a fixing bracket, and FIG. 4B shows an electrode plate.

FIG. 5A shows a chip, FIG. 5A is a front view, and FIG.
5B is a left side view, and FIG. 5C is a plan view.

FIG. 6 is a cross-sectional view of the ultrasonic stapler in the vicinity of the connection pin in a direction along the connection pin.

7A and 7B show a part of the upper cover in the vicinity of the rotation fulcrum of the ultrasonic stapler, and FIG.
7B is a right side view in FIG. 7A, and FIG. 7C is an explanatory view showing a case where a cord bush is mounted.

FIG. 8 shows a cord bush, and FIG. 8 (A) is a front view and FIG. 8 (B) is a plan view.

FIG. 9 shows the vicinity of the rotating end of the lower cover, and FIG.
FIG. 9A is a sectional view in the front direction, and FIG. 9B is a sectional view in the right side direction.

FIG. 10 is a partially cutaway front view showing a conventional example.

FIG. 11 is a sectional view taken along line XX in FIG. 10;

FIG. 12 is an explanatory view showing a case where a cover of a conventional ultrasonic stapler is deformed.

FIG. 13 is an explanatory view showing a case where a torsion coil spring falls down when a gripping member and a pressing member are connected by a connecting pin in a conventional assembling process of an ultrasonic stapler.

FIG. 14 is an explanatory view showing a state in which a cord bush is mounted on a cover of a conventional ultrasonic stapler.

[Explanation of symbols]

 2 Ultrasonic vibrator 3 Horn part 31 Processing surface 4 Upper frame (grip member) 4D, 4E Side wall 45 Limit switch (switch) 5 Lower frame (Pressing member) 5C Set screw 5D, 5E Side wall 51 Tip 51A Pressing surface 6 Upper cover (Cover) 6B Inclined wall (outer wall at one end) 6C Holding wall 6D Notch 6E Notch 7 Lower cover (Cover) 7B Projection 7C Hole for attaching and detaching set screw 7D, 7E Side wall 10, 10P Ultrasonic stapler 11 Connecting pin 12 Torsion coil spring 13 Inner collar 14 Cord bush 14A Vertical end face (end face of one end) 14B Inclined groove L1, L2, L3, L4 Connection line T Ultrasonic oscillator

Claims (5)

[Claims] An ultrasonic vibrator for oscillating ultrasonic vibration,
A horn part which amplifies this ultrasonic vibration and has a processing surface at its tip, a grip member integrally holding them at one end thereof, and rotatably engaged with the other end of this grip member And a pressing member having a pressing surface opposed to a processing surface of the horn portion at a rotating end thereof, and covering the gripping member and the pressing member from the outside in shapes respectively corresponding to the pressing member and facing each other. In the state in which the gripping member and the pressing member are provided, two covers each having a U-shaped cross section, a switch for switching between driving and stopping of the ultrasonic vibrator, and the ultrasonic vibrator and the switch and the external A plurality of connection lines for connecting to an ultrasonic oscillator, wherein the processing surface is formed perpendicular to a vibration direction of ultrasonic vibration transmitted through the horn portion, and the switch is provided on the gripping member. Rutotomoni the ultrasonic stapler, characterized in that the wire only uniformly said gripping member each connection line. 2. An ultrasonic vibrator for oscillating ultrasonic vibration,
A horn part which amplifies this ultrasonic vibration and has a processing surface at its tip, a grip member integrally holding them at one end thereof, and rotatably engaged with the other end of this grip member And a pressing member having a pressing surface opposed to a processing surface of the horn portion at a rotating end thereof, and covering the gripping member and the pressing member from the outside in shapes respectively corresponding to the pressing member and facing each other. In the state in which the gripping member and the pressing member are provided, two covers each having a U-shaped cross section, a switch for switching between driving and stopping of the ultrasonic vibrator, and the ultrasonic vibrator and the switch and the external A plurality of connection lines for connecting to an ultrasonic oscillator, wherein the processing surface is formed perpendicular to the vibration direction of the ultrasonic vibration transmitted through the horn portion, and the two covers are opposed to each other. It has two parallel side walls, and the pressing member is rotatably connected to the gripping member by a connecting pin, and the connecting pin is set to have a length substantially equal to the interval between the insides of the side walls of the cover. An ultrasonic stapler characterized in that: 3. A cross section U of the grip member and the pressing member.
The gripping member and the pressing member are formed so as to have two parallel side walls which are opposed to each other. The gripping member and the pressing member are connected by uniformly inserting the connecting pin into the engagement holes provided on the respective side walls of the gripping member and the pressing member. A torsion coil spring for rotating the pressing member in a direction in which the pressing surface is separated from the pressure surface, and between the torsion coil spring and the connection pin,
3. The ultrasonic stapler according to claim 2, wherein a tubular inner collar having a length substantially equal to a distance between inner sides of the narrower side walls of the grip member and the pressing member is inserted. . 4. An ultrasonic vibrator for oscillating ultrasonic vibration,
A horn part which amplifies this ultrasonic vibration and has a processing surface at its tip, a grip member integrally holding them at one end thereof, and rotatably engaged with the other end of this grip member And a pressing member having a pressing surface opposed to a processing surface of the horn portion at a rotating end thereof, and covering the gripping member and the pressing member from the outside in shapes respectively corresponding to the pressing member and facing each other. In the state in which the gripping member and the pressing member are provided, two covers each having a U-shaped cross section, a switch for switching between driving and stopping of the ultrasonic vibrator, and the ultrasonic vibrator and the switch and the external A plurality of connection lines for connecting to an ultrasonic oscillator, wherein the processing surface is formed perpendicular to the vibration direction of the ultrasonic vibration transmitted through the horn portion, and the pressing surface is formed at a rotating end of the pressing member. Formed on the surface of the chip provided with set screws in the portion, and provided with a set screw attaching / detaching hole that penetrates from the outside to the pressing member at a position corresponding to the set screw on the cover provided on the pressing member, An ultrasonic stapler, wherein a projection is provided around the set screw attaching / detaching hole of the cover so as to protrude in the insertion / removal direction of the set screw. 5. An ultrasonic vibrator for oscillating ultrasonic vibration,
A horn part which amplifies this ultrasonic vibration and has a processing surface at its tip, a grip member integrally holding them at one end thereof, and rotatably engaged with the other end of this grip member And a pressing member having a pressing surface opposed to a processing surface of the horn portion at a rotating end thereof, and covering the gripping member and the pressing member from the outside in shapes respectively corresponding to the pressing member and facing each other. In the state in which the gripping member and the pressing member are provided, two covers each having a U-shaped cross section, a switch for switching between driving and stopping of the ultrasonic vibrator, and the ultrasonic vibrator and the switch and the external A plurality of connection lines for connecting to an ultrasonic oscillator, wherein the processing surface is formed perpendicular to the vibration direction of the ultrasonic vibration transmitted through the horn portion, and inside the cover on the gripping member side, A holding wall that is inclined with respect to the outer wall of the one end portion so as to face the outer wall of the one end portion and to decrease the distance between the outer wall of the one end portion and the space therebetween from the other cover while facing the outer wall of the one end portion. A groove-shaped notch is provided on an outer wall of the one end portion in a direction in which a distance between the outer wall and the holding wall becomes narrower, and a cutout for inserting the connection lines into the holding wall is provided. A notch is provided, and each of the connection lines is formed in a tubular shape through which the connection line is inserted, and an inclined groove inclined at an angle equal to an inclination angle of the holding wall with respect to an outer wall of the one end with respect to an end surface of one end thereof. The ultrasonic stapler according to claim 1, wherein the cord bush for holding each connection line provided on the outer peripheral surface is provided between an outer wall of the one end and the holding wall.