JPH1044243A - Ultrasonic stapler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance portability and productivity. SOLUTION: An ultrasonic vibrator 2 oscillating ultrasonic vibration, a horn part 3 amplifying ultrasonic vibration and having a processed surface 3A provided to the leading end part thereof, a grip member 4 holding them integrally at its one end part 4A and the press member 9 engaged with the grip member 4 in a freely revolvable manner and having the pressure surface 9B opposed to the processed surface 3A of the horn part 3 provided to the revolving end 9A thereof are provided. The end part 4A of the grip member 4 holding the ultrasonic vibrator 2 and the horn part 3 is formed so as to be slightly bent with respect to the whole of the grip member 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 ultrasonic welding machine 50 has a horn 5 provided with a processing surface 51a at the tip.
1 is provided. The ultrasonic output means 52 is provided with a casing 53 of the ultrasonic welding machine 50.
The horn 51 is housed in a state where the tip of the horn 51 is exposed, and an ultrasonic welding operation is performed on an object to be welded by a processing surface 51 a provided at the tip.

Further, in the ultrasonic welding machine 50, an ultrasonic output means arrangement 52 is mounted on a horn 5 by a support (not shown).
One processing surface 51a is supported so as to have a gap between the processing surface 51a and the opposing surface of the lower jig G facing the processing surface 51a.
Further, an air cylinder 54 is provided above the casing 53, which allows the ultrasonic output means 52 to move up and down. Accordingly, the distance between the processing surface 51a and the opposing surface of the lower jig G is reduced. Can be adjusted. Code 55
Is an oscillator for exciting the ultrasonic output means 52.

The ultrasonic welding machine 50 has a stable shape and a predetermined weight in a state where the ultrasonic welding machine 50 is arranged at a fixed position in order to eliminate the influence of external vibration and the like. I have.

The symbol P in FIG. 7 indicates a plastic pack for accommodating eggs. The operation of the ultrasonic welding machine 50 will be described by taking as an example the case where the opening of the egg pack P is welded. First, a predetermined portion of the egg pack P is transported to the gap between the processing surface 51a of the horn 51 and the opposing surface of the lower jig G. At this time, the ultrasonic output means 5
5, and the processing surface 51a of the horn 51 is in a state of performing ultrasonic vibration. Then, the lowering operation of the ultrasonic wave output means 52 is performed by the air cylinder 54.

[0006] Thus, the predetermined portion of the egg pack P is
Ultrasonic vibrations are transmitted from the processing surface 51a of the horn 51 by being pressed from both directions between the processing surface 51a of the horn 51 and the opposing surface of the lower jig G. Then, a predetermined portion of the egg pack P is melted and ultrasonic welding is performed. Thereafter, the ultrasonic output means 52 is immediately pulled up by the air cylinder 54, and the operation ends.

[0007]

However, most of the ultrasonic welding machines in the above-mentioned conventional examples are of a desktop type or a stationary type as described above, and therefore have a disadvantage of poor portability.

In such a case, when performing the welding operation, the object to be welded is carried to a conventional ultrasonic welding machine, and the operation can be performed only at a fixed position. Therefore, it is difficult to expand the area where the welding operation can be performed. Was.

Further, the construction of a casing, an air cylinder, a support, and other positioning means for processing is indispensable, and the construction is complicated, the number of parts is large, and productivity is poor.

[0010]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an ultrasonic stapler which can solve the disadvantages of the prior art, is portable, and has good productivity.

[0011]

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 rotatably engaged with the gripping member and having a pressing surface opposed to a processing surface of the horn at the rotating end. The end portion of the gripping member that holds the ultrasonic vibrator and the horn portion is formed to be slightly bent with respect to the entire gripping member.

In the above arrangement, the pressing member is rotated with respect to the gripping member, and the ultrasonic vibrator presses the pressing surface of the gripping member against the processing surface of the horn portion in the vibrating state via the object to be welded. This causes the material to be welded to be held to be fused, thereby performing welding.

According to the second aspect of the present invention, there is provided an ultrasonic vibrator for oscillating ultrasonic vibration, a horn for amplifying the ultrasonic vibration and having a processing surface at a front end thereof, and integrally forming one end thereof. A gripping member held by the portion is provided, and a pressing member rotatably engaged with the gripping member and having a pressing surface at a rotating end thereof facing a processing surface of the horn portion.

The gripping member and the pressing member are formed of a material having elasticity with their respective cross sections being substantially U-shaped, and the gripping member and the pressing member are connected to each other with the opening sides of the U-shaped cross-section mutually. Make them face each other.

Further, in the engagement portion between the gripping member and the pressing member, the other member is inserted inside one of the members, and engagement projections are provided outside the both side walls of the inserted member. A configuration is adopted in which engagement holes corresponding to the engagement protrusions are provided inside the both side walls of the other member.

In this configuration, the gripping member and the pressing member engage with each other with the U-shaped cross section facing each other. In the engaging portion, for example, in a state in which the pressing member is inserted inside the grip member, the side walls of the U-shaped cross section are brought into contact with each other, and further provided on the outer surfaces of both side walls of the pressing member. The engaging projections engage with the respective engaging holes provided on the inner side surfaces of both side walls of the gripping member, and the pressing member is rotatable around the engaging projections and the engaging holes with respect to the gripping member. It has become.

Alternatively, the gripping member is inserted inside the pressing member, and each engaging projection integrally formed on the outer surface of both side walls of the gripping member is provided on the inner surface of both side walls of the pressing member. Engaged with each engaging hole.

Then, the pressing member is rotated with respect to the gripping member, and the pressing surface of the gripping member is pressed by the ultrasonic vibrator against the processing surface of the horn portion in the vibrating state via the material to be welded. Melting occurs in the sandwiched material to be welded,
Perform welding.

The present invention seeks to achieve the above-described objects by the above-described configurations.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. This first embodiment shows an ultrasonic stapler 10 for performing ultrasonic welding on a thermoplastic material (weld to be welded) such as plastic.

The ultrasonic stapler 10 includes an ultrasonic vibrator 2 that oscillates ultrasonic vibrations, and a horn section 3 that amplifies the ultrasonic vibrations and has a processing surface 3A at its tip.
And a gripping member 4 for holding them together at one end 4A, and rotatably engaged with the gripping member 4 to face the processing surface 3A of the horn portion 3 at the rotating end 9A. And a pressing member 9 having a pressing surface 9B. Reference numeral 6
Is a main body cover for housing the above components inside with the front end of the horn portion 3 on the processing surface 3A side and both ends of the pressing member 9 exposed to the outside.

To explain each part in detail, first, the ultrasonic vibrator 2
As shown in FIG. 2, a ceramic ring 21 is provided in contact with a lower portion of the horn portion 3, and an electrode plate 22, a ceramic ring 21, an electrode plate 22, and a tail mass 23 are sequentially provided therebelow. And a bolt 24 for integrally tightening and fixing these and the horn portion 3.

The two electrode plates 22 of the ultrasonic vibrator 2 are connected to an ultrasonic oscillator T outside the ultrasonic stapler 10 via lead wires L. When a voltage having a predetermined oscillation frequency is applied from the ultrasonic oscillator T via the lead wire L, the ultrasonic transducer 2 generates ultrasonic vibration. This ultrasonic vibration is transmitted to the horn portion 3 and amplified, and the processed surface 3A vibrates in a direction perpendicular to the processed surface 3A.

On the other hand, the horn 3 to which the vibration is transmitted by the ultrasonic vibrator 2 has a processing surface 3A formed in a flat shape at the upper end in FIG. 2 and a cylindrical portion 3B having a relatively small diameter.
And a cylindrical portion 3E having a relatively large diameter are connected via an intermediate portion 3C having an almost exponential shape, and a flange 3D having a flange shape is provided between the large cylindrical portion 3E and the intermediate portion 3C.
And these are integrally formed. The flange 3D is sandwiched between a gripping member 4 and a mounting member 41, which will be described later, at an upper portion and a lower portion of the flange 3D via insertion members 42 which are rubber rings.

When the horn portion 3 is welded, ultrasonic vibration is transmitted in the central axis direction by the ultrasonic vibrator 2,
The processing surface 3A is vibrated in the vertical direction. When the machined surface 3A in such a vibration state is brought into contact with the object to be welded, the object to be welded is melted and welding is performed.

The horn section 3 and the ultrasonic vibrator 2 are
The grip member 4 is held on one end 4A side. The gripping member 4 is made of a long metal plate, and has a through hole 4B slightly smaller than the flange 3D of the horn 3 at one end 4A. It is a grip portion 4C that is held by a user using the ultrasonic stapler 10.

A small cylindrical portion 3B of the horn portion 3 and an intermediate portion 3C are inserted from below into the through hole 4B in a loosely inserted state. Below the gripping member 4, the large cylindrical portion 3E of the horn portion 3 is inserted. Mounting member 4 having through hole 41A into which can be inserted
1 is attached by a screw 43. That is, the horn part 3
Is held between the one end 4A of the gripping member 4 and the mounting member 41. In addition, insertion members 42 are inserted above and below the flange 3D of the horn portion 3, respectively, to reduce transmission of ultrasonic vibration to the grip member 4.

One end 4A of the gripping member 4 is formed to be slightly bent with respect to the entire gripping member 4 (grip 4C of the gripping member 4). That is, the gripping member 4 is bent in a U-shape with an engaging portion 4D with a pressing member 9 described later, and the flat surface of the one end portion 4A holding the horn portion 3 and the like has a horn shape. The horn part 3 is held so as to be parallel to the processing surface 3A of the part 3. The other grip 4C is inclined downward in FIG. The angle between the one end 4A and the grip 4C is approximately 45 degrees.
It is set between ~ 90 °.

The above-mentioned engaging portion 4D of the gripping member 4 protrudes from both sides of the gripping member 4 and has two side walls 4E bent upward and a pressing member formed in the middle of these side walls 4E. 9 is a long through hole 4F that can be inserted freely
It is composed of

The two side walls 4E are opposed to each other, and on the plane thereof, an engagement hole for engaging an engagement protrusion 9C or the like formed on the pressing member 9 described later is provided. The root of each side wall 4E is bent so as to protrude slightly outward. The protruding portion is provided to engage with a concave portion 6A formed inside the main body cover 6 described later.

Next, the pressing member 9 will be described. The pressing member 9 is formed of a metal-made long plate-like member, and one rotating end 9A thereof is opposed to the processing surface 3A of the horn portion 3 as shown in FIG. It is formed in a bent state, and a surface facing the processing surface 3A is a pressing surface 9B. Further, a bead is formed at the rotating end 9A, and a stamping process is performed from the opposite surface so that the flat surface protrudes toward the processing surface 3A of the horn portion 3 as shown in FIG. It has been subjected. Due to this bead, the protruding pressing surface 9B has a small contact area with the processing surface 3A of the horn portion 3, thereby concentrating on the small area to cause the melting of the material to be welded, thereby improving the welding efficiency. I'm trying.

On the other hand, the opposite rotating end 9D is an operating lever to which the user applies a pulling force in the direction of the arrow in FIG. 1, and the pulling operation causes the pressing surface 9B to be pressed.
Is pressed against the processing surface 3A of the horn portion 3.

An engaging projection 9 projecting to both sides of the pressing member 9 is provided between the two rotating ends 9A and 9D of the pressing member 9.
C and a pin member 91 are provided. The engagement protrusion 9C and the pin member 91 are inserted into the engagement holes formed in the two side walls 4E of the grip member 4 described above. As a result, the pressing member 9 is connected to the engagement protrusion 9C and the pin member 9.
1 is rotatable about the gripping member 4 about a rotation axis.

It should be noted that the pin member 91 is
E and 4E are raised by bending, and the engagement protrusions 9 are formed.
After C is inserted into the through hole, the pressing member 9 is equipped with the screw 92. That is, the mounting process is facilitated by retrofitting, thereby improving the productivity of the device.

Further, it is also possible to adopt a configuration in which the engaging projections 9C provided integrally with the pressing member 9 are provided on both sides without providing the pin member 91. In this case, when the pressing member 9 is mounted on the gripping member 4, the pressing member 9 must be
Then, the wall portion 4E is immediately raised by bending.

A return spring 7 and a micro switch 8 are provided between the grip portion 4C of the grip member 4 and the rotation end 9D of the pressing member 9.
And are arranged. Both ends of the return spring 7 are connected to the grip portion 4C and the rotating end 9D, respectively, and urges the returning force when the pressing member 9 is applied to rotate in the above-described arrow direction. Since both ends are fixed, the grip portion 4C and the rotating end 9D are regulated so as not to be separated from the natural length of the return spring 7.

On the other hand, the microswitch 8 is connected to a lead wire L from the above-described ultrasonic oscillator T, and is connected to each of the electrode plates 22 of the ultrasonic vibrator 2 by wiring (not shown) from the microswitch 8. It is connected. That is, the ultrasonic transducer 2 is driven by applying the microswitch 8 and turning it on. The microswitch 8 is a so-called push button switch, and is turned on when a push button is pressed. Further, the micro switch 8 is fixedly mounted on the grip portion 4C of the grip member 4 with the push button side facing the rotation end 9D side of the pressing member 9. That is, by this operation, the pressing member 9 is attracted in the above-mentioned arrow direction, and the pressing surface 9B is pressed toward the processing surface 3A of the horn portion 3, and at the same time, the push button of the micro switch 8 presses the pressing member 9 The driving of the ultrasonic transducer 2 is started after the application.

Next, the main body cover 6 will be described in detail with reference to FIG. FIG. 4A is a perspective view of the main body cover 6, and FIG. 4B is a cross-sectional view of the main body cover 6. The main body cover 6 is a housing integrally formed of resin and having an internal space for accommodating each component in a state in which a front end portion of the horn portion 3 on the processing surface 3A side and both end portions of the pressing member 9 are exposed to the outside. It has a strength that is not easily deformed by the grip force of the user.

The main body cover 6 comprises a first cylindrical member 61 for housing the ultrasonic vibrator 2 and the horn portion 3 and a second cylindrical member 62 for housing the gripping member 4. One ends of the shaped members 61 and 62 intersect and are connected according to the bending angle of the gripping member 4.

The first cylindrical member 61 has a substantially rectangular cross section, and has an internal space large enough to accommodate the ultrasonic vibrator 2 and the horn 3. . From the upper opening 61A, the front end of the horn 3 on the processing surface 3A side and the pressing end 9A of the pressing member 9 on the pressing surface 9B protrude upward. Also, this opening 61A
Functions as a take-out port for accommodating the other components of the ultrasonic stapler 10 except for the main body cover 6 in an assembled state, and is set to a size sufficient for that purpose.

The second cylindrical member 62 accommodates the grip portion 4C of the grip member 4, and its outer peripheral surface has an ultrasonic stapler 10C.
It becomes a grip that the user holds when using the. In the middle of the second cylindrical portion 62, the grip portion 4 of the grip member 4 is provided.
An insertion hole 6C through which a set screw 44 screwed into a screw hole 4G for fixing C to the body cover 6 is formed.

First and second cylindrical members 61 and 62
An opening 64 is provided below the connecting / intersecting portion, from which the turning end 9D of the pressing member 9 projects outside. The opening 64 is set to a size that does not prevent the application of the microswitch 8 due to the rotation of the pressing member 9.

Also, above the opening 64 inside the main body cover 6, the mounting projections 6B, 6 whose inner wall surfaces project toward the pressing member 9 from both sides with the pressing member 9 interposed therebetween.
B is formed. The engaging portion 4D of the gripping member 4 is mounted on the upper end of each of the mounting protrusions 6B.

On the upper wall surface at the upper end of each of the mounting projections 6B, 6B, there is formed a recess 6 which is a long hole-shaped depression.
A and 6A are formed. As described above, the protruding portions formed at the roots of the immediate wall portions 4E of the grip member 4 are inserted into the concave portions 6A, 6A.

As described above, the main body cover 6 is housed inside the main body cover 6 through the opening 61A in a state where other components of the ultrasonic stapler 10 except for the main body cover 6 are assembled, and The mounting is performed by placing the engaging portion 4D on each mounting protrusion 6B, pressing the wall portion 4E into the concave portion 6A so as to immediately push the wall portion 4E, and fixing the grip portion 4C with the set screw 44. be able to. For this reason,
With the main body cover 6, in the production process of the ultrasonic stapler 10, the mounting of the main body cover 6 can be performed only by a simple operation, and the productivity of the entire ultrasonic stapler 10 can be improved.

The cross-sectional shape of the cylindrical members 61 and 62 is
Each shape is not limited to a square shape, and may be another shape.

The operation of the first embodiment having the above-described components will be described. First, the user of the ultrasonic stapler 10 grips the second tubular member 62 of the main body cover 6 and the object to be welded is sandwiched between the processing surface 3A of the horn portion 3 and the pressing surface 9B of the pressing member 9. The ultrasonic stapler 10 is transported to a position where it can be formed.

Then, the turning end 9 D of the pressing member 9 protruding to the outside of the main body cover 6 is pulled toward the grip portion 4 C of the grip member 4. As a result, the object to be welded is sandwiched between the processing surface 3A and the pressing surface 9B, and at the same time, the micro switch 8 is pressed and applied by the rotating end 9D, the ultrasonic vibrator 2 is driven, and the horn 3 amplifies. And transmitted to the material to be welded. As a result, the sandwiched object to be welded causes melting, and welding is performed.

FIG. 5 shows the state of the handle of the user when the welding operation is performed by the ultrasonic stapler 10. FIG. 6 shows, as a comparative example, the state of the handle of the user when performing a welding operation using an ultrasonic stapler in which the gripping member is not bent. The symbol H is the possession of the user.

In general, when performing the welding process, the object of the welding process is two flat or sheet-shaped members, and the process of bonding these members by welding is often performed.
In many cases, these two plate-shaped objects to be welded need to be bonded together with their ends aligned, and the work of aligning the ends is performed on a horizontal work table. And
When the end positions are aligned, it is desirable to perform the welding on the spot so that no displacement occurs.

When processing is performed by using the ultrasonic stapler 10 of the first embodiment to make the processing surface 3A horizontal, the handle H of the user has the wrist in a normal state. Processing can be performed as it is. On the other hand, when processing is performed with the processing surface being horizontal by the ultrasonic stapler shown in FIG. 6, the user must perform an operation of twisting the handle in the direction of the arrow. This is complicated and burdens the user.

As described above, in the first embodiment,
Since the gripping member 4 is bent at an angle within a predetermined range,
The burden on the user is reduced, and the usability is improved.

In the first embodiment, the gripping member 4 and the pressing member 9 (except for the pin member 91) are each formed of a single metal flat plate, so that the number of parts is reduced and the productivity is reduced. And the size and weight of the entire apparatus can be easily reduced.

Further, the above-mentioned respective structures improve the portability, so that there is no need to transport the object to be welded to the ultrasonic welding machine unlike the conventional tabletop and stationary ultrasonic welding machines. The working area is widened, the ultrasonic stapler 10 itself can be moved with the gripping member in hand to perform the ultrasonic welding process, and for example, the effect that it can be used in a narrow area such as repair inside the machine can be obtained. Have.

Next, a second embodiment of the present invention will be described with reference to FIG. In the ultrasonic stapler 100 shown in the second embodiment, the same parts as those of the ultrasonic stapler 10 are denoted by the same reference numerals, and overlapping description will be omitted.

The ultrasonic stapler 100 includes an ultrasonic vibrator 2 that oscillates ultrasonic vibration, a horn 103 that amplifies the ultrasonic vibration and has a processing surface 103A at the tip thereof, and these are integrally formed. , A grip member 104 held by a rotating end 104A as one end, and the grip member 1
And a pressurizing surface 19 opposed to the processing surface 103A of the horn portion 103 at a rotational end 109A thereof.
And a pressing member 109 having a contact member 191 having 1A.

To explain each part in detail, first, the horn 103
Has almost the same structure as the horn part 3 described above except for the shape of the processing surface 103A at the tip. This processing surface 10
The shape of 3A is tapered, thereby reducing the contact area at the time of welding, enabling the processing of details, and improving the efficiency of dissolving the object to be welded by ultrasonic waves by concentrating at one point.

The gripping member 104 and the pressing member 109 are made of a material having elasticity such as resin and plastic, and are integrally formed by die-cutting. (Ends on the opposite side) and 109D side.

The grip member 104 and the pressing member 109 have a U-shaped (substantially U-shaped) cross section (the rotation end 10).
4A), the opening sides of the U-shaped cross section are opposed to each other. And the gripping member 104 is the pressing member 1
The pressing member 109 is inserted so as to sandwich the two side walls of the pressing member 109 between two side walls formed to have a width slightly larger than that of 09 and having a U-shaped cross section.

In this inserted state, engaging projections 109B, 109B are provided on the upper portion on one end 109D side of the pressing member 109 so as to protrude from the respective side walls by integral molding. One end of
The engagement holes 104B, 104B
Are provided on each side wall. Then, each of the engagement projections 109B is fitted into each of the engagement holes 104B.
The grip member 104 is centered on these engagement protrusions 109B.
And the pressing member 109 are rotatable with respect to each other.

As shown in FIG. 7A, each of the engaging projections 109B and the engaging holes 104B has an arc-shaped lower portion. Sliding with each other at the arcuate portions makes the rotation smooth. Further, the engagement hole 104B is
It is formed in a substantially triangular shape when viewed from the direction shown in FIG. 7A, and the upper limit of the rotation angle of the engagement projection 109B is determined by the opening angle of the lower part. For this reason, the pressing member 109 with respect to the grip member 104 is prevented from rotating excessively.

On the rotating end 104A side of the gripping member 104,
The ultrasonic vibrator 2 and the horn 103 are held.
A hole for accommodating the ultrasonic vibrator 2 inside is formed on the side of the rotating end 104A in a state opened to the pressing member 109 side. On the side of the rotating end 104A facing the pressing member 109, two mounting members 141 and 141 for holding the flange 103D of the horn 103 via the interposing members 42 and 42 are screwed. Fixedly equipped. The horn 103 and the ultrasonic vibrator 2 are fixedly mounted on the rotating end 104A such that the central axes thereof are along the rotating direction of the rotating end 104A.

On the other hand, the pressing member 109 is provided with a metal contact member 191 fixed by screws 192 on the side of the rotating end 109A. The abutting member 191 is formed in an arc shape having a tip end protruding toward the gripping member 104, and the arc-shaped portion is formed on the processing surface 103 </ b> A
And a pressure surface 191A that abuts against the pressure surface 191A.

At a position (upper portion in FIG. 7A) of the pressing member 109 which is close to the gripping member 104, an opposing plate 193 is provided by integral molding. The opposing plate 193 and the gripping member 104 that opposes the opposing plate 193
A return spring 7 is disposed between the inner side wall of the spring and the return spring 7.
The return spring 7 has its gripping members 10 at both ends.
It is connected to the inner wall surface on the fourth side and the opposing plate 193, and urges a return force when the grip member 104 and the pressing member 109 rotate in the approaching direction.

On the inner wall surface on the grip member 104 side, the microswitch 8 pushes the push button side to the pressing member 10.
9 is provided facing the opposing plate 193 side. For this reason, when the grip member 104 and the pressing member 109 are rotated in the approaching direction, the push button of the microswitch 8 is pressed by the opposing plate 193.

Further, notches 104D and 109E are formed in the gripping member 104 and the pressing member 109, respectively, and these notches 104D and 109E are formed.
A lead wire L connects the ultrasonic switch (not shown) and the microswitch 8 through the lead wire. Note that the lead wire L is
Some illustration is omitted in FIG. Also,
At the same time, the wiring from the microswitch 8 to the electrode plate of the ultrasonic vibrator is not shown.

The operation of the second embodiment having the above-described components will be described. First, the user of the ultrasonic stapler 100 grips the gripping member 104 and the pressing member 109,
The ultrasonic stapler 100 is carried to a position where the object to be welded can be sandwiched between the processing surface 103A of the horn portion 103 and the pressing surface 191A of the contact member 191.

Then, the gripping member 104 and the pressing member 109
Squeeze them in the direction that they approach each other. As a result, the object to be welded is sandwiched between the processing surface 103A and the pressing surface 191A, and at the same time, the microswitch 8 is pressed and applied by the opposing plate 193, and the ultrasonic vibrator 2 is driven and amplified by the horn 103. And transmitted to the material to be welded. As a result, the sandwiched object to be welded causes melting, and welding is performed.

As described above, in the second embodiment,
The horn 1 is held by grasping the gripping member 104 and the pressing member 109.
03 and the pressing surface 191 of the contact member 191
Since the processing is performed by sandwiching the material to be welded on A, the portability can be improved as in the first embodiment.

Further, since the gripping member 104 and the pressing member 109 are formed in a U-shaped cross section and the opening sides are opposed to each other, the wiring of the ultrasonic stapler and the microswitch 8 are formed in the region inside the U-shape. Etc. can be stored.

Also, since the gripping member 104 and the pressing member 109 are rotatably engaged by the engaging projection 109B and the engaging hole 104B, the main body of the ultrasonic stapler 100 is composed of only two parts. In addition, since an independent separate member for allowing free rotation is not required, the number of parts can be significantly reduced, and the cost of parts and the productivity can be reduced.

It should be noted that the pressing member 10 is more than the gripping member 104.
9 is formed to be wide, the gripping member 104 is provided on the inner side, and the gripping member 104 is provided with an engagement projection and the pressing member 10 is formed.
It is good also as a structure which provides an engagement hole in 9 and connects.

Further, the opposing plate 193 may have a structure in which another member is attached later.

Next, a modification of the present invention will be described with reference to FIG. In the ultrasonic stapler 200 shown in this modified example, the same parts as those of the ultrasonic staples 10 and 100 are denoted by the same reference numerals, and overlapping description will be omitted.

The ultrasonic stapler 200 includes an ultrasonic vibrator 2 that oscillates ultrasonic vibrations, a horn 103 that amplifies the ultrasonic vibrations and has a processing surface 103A at the end thereof, and these are integrally formed. , A grip member 204 held at a rotation end 204A, and rotatably engaged with the grip member 204, and a horn portion 103 attached to the rotation end 209A.
Contact member 2 as a pressing surface facing the processing surface 103A
And a pressing member 209 having the same.

The components will be described in detail.
The pressing member 209 is made of metal and has a substantially U-shaped cross section, and the opening sides of the substantially U-shaped cross section are opposed to each other. And the grip member 204
The pressing member 209 is formed to be slightly wider than the pressing member 209, and the pressing member 209 is inserted into a through hole 204B provided at an intermediate portion thereof.

The gripping member 204 and the pressing member 209 are rotatably connected to each other by a rotating shaft 241 provided near the through hole 204B. The above-described through hole 204B does not hinder the rotation of the pressing member 209 for bringing the processing surface 103A of the horn 103 into contact with the contact member 291 provided at the rotating end of the pressing member 209, and
The angle between the gripping member 204 and the pressing member 209 is set so as not to be too large (for example, 90 ° or less).
The size in the length direction of the grip member 204 is set.

The rotating shaft 241 has a torsion coil spring 20
7 are engaged. As shown in FIG. 8, the torsion coil spring 207 has both ends formed in a V shape.
Since one end abuts against the inner wall of the gripping member 204 and the other end abuts against the inner wall of the pressing member 209, the gripping member 204 and the pressing member 209 abut against the processing surface 103A of the horn 103. When the contact member 291 rotates in a direction in which the contact member 291 approaches, a return force is urged.

Further, the gripping member 204 has its rotating end 2
A circular hole 204D is provided in the vicinity of the circular hole 204A.
The ultrasonic transducer 2 and the horn 103 are held in a state where the horn 103 is inserted into the 4D. That is, the inner diameter of the through hole 204D is set smaller than the flange 103D of the horn 103, and the horn 103 is inserted from above,
The insertion members 42, 42 are provided above and below the flange 103D, respectively.
, And sandwiched from above by the mounting member 241, and further, the mounting member 241 is
4, the horn 103 and the ultrasonic vibrator 2 are mounted on the gripping member 204.

At this time, the horn 103 and the ultrasonic vibrator 2 are fixedly mounted on the rotation end 204A such that the center axes thereof are along the rotation direction of the rotation end 204A.

Further, the rotating end 204 of the gripping member 204
A is provided with a plastic or resin cover 206 that houses the ultrasonic vibrator 2 inside, thereby shutting off the ultrasonic vibrator 2 and the horn 103 from the outside, and maintaining the apparatus. I have.

Further, the other rotating end side of the gripping member 204 is a gripping portion 204C that can be gripped by a user of the ultrasonic stapler 200 with a handle. This grip 204C
In the inner region of the substantially U-shaped cross section,
, A microswitch 208 and a lead L connected thereto are provided.

The micro switch 208 is provided with a rotatable arm-shaped member 208A for switching on and off. The arm-shaped member 208A has a smoothly formed distal end and a pressing member 209. It is in contact with the inner wall. Therefore, this arm-shaped member 208A
The horn part 1 is composed of a grip member 204 and a pressing member 209.
In the case where the processing surface 103A of FIG. 03 and the pressing surface of the contact member 291 rotate in the approaching direction, the rotation is urged in the direction of the arrow in FIG.
Are driven.

The illustration of the ultrasonic oscillator connected to the other end of the lead wire L and the wiring from the microswitch 208 to the ultrasonic vibrator 2 are omitted.

On the other hand, the pressing member 209 has
On the 09A side, a metal contact member 291 is fixedly mounted by a method such as bonding. The contact member 291 is turned by the rotation of the grip member 204 and the pressing member 209, and
Is mounted at a position where it comes into contact with the processing surface 103A. The other rotating end of the pressing member 209 is
The ultrasonic stapler 200 is a grip portion 209C that can be gripped by a user.

The operation of the modified example having the above-described configurations will be described. First, the user of the ultrasonic stapler 200 grasps each grip portion 20 of the grip member 204 and the pressing member 209.
4C and 209C, the ultrasonic stapler 200 is carried to a position where the object to be welded can be sandwiched between the processing surface 103A of the horn 103 and the contact member 291.

Then, the grip portion 204C of the grip member 204
And the grip portion 209C of the pressing member 209 grip these in a direction approaching each other. Thereby, the material to be welded is
It is sandwiched between the processing surface 103A and the contact member 291. At the same time, the rotation of the arm-shaped member 208A of the microswitch 208 is urged, and the ultrasonic vibrator 2 is driven, amplified by the horn 103, and amplified. It is transmitted to the deposit. As a result, the sandwiched object to be welded causes melting, and welding is performed.

As described above, in this modified example, the gripping member 204 and the pressing member 209 are gripped and the workpiece is sandwiched between the processing surface 103A of the horn 103 and the contact member 291 to perform the processing. As in the first embodiment, portability can be improved.

Further, since the gripping member 204 and the pressing member 209 are formed in a substantially U-shaped cross section and their opening sides are opposed to each other, the wiring of the ultrasonic stapler and the micro It is possible to store the detailed configuration of the switch 208 and the like.

Further, since the gripping member 204 and the pressing member 209 are formed of a metal member having a substantially U-shaped cross section and are connected by a rotating shaft 241, the main body of the ultrasonic stapler 200 is formed. The parts are simple and configured with a small number of parts, which enables a reduction in parts costs and an improvement in productivity.

Next, another modification of the present invention will be described with reference to FIG. Ultrasonic stapler 3 shown in another modified example
For 00, ultrasonic staples 10, 100, 200
The same parts as those described above are denoted by the same reference numerals, and redundant description will be omitted.

The ultrasonic stapler 300 includes an ultrasonic vibrator 2 that oscillates ultrasonic vibrations, a horn 103 that amplifies the ultrasonic vibrations and has a processing surface 103A at a tip end thereof, and these are integrally formed. , A gripping member 304 held at one end 304A, and rotatably engaged with the gripping member 304, and a horn portion 103 at a rotating end 309A.
Contact member 3 as a pressing surface facing the processing surface 103A
The pressing member 309 includes a pressing member 309 and an urging member 310 that rotatably engages with the grip member 304 and urges the pressing member 309 to rotate.

The components will be described in detail.
4. The pressing member 309 and the urging member 310 are each made of metal and have a substantially U-shaped cross section. The gripping member 304 and the urging member 310 have the opening sides of the substantially U-shaped cross section facing each other. Further, the pressing member 309 and the urging member 310 have the opening sides of the substantially U-shaped cross section facing each other. Then, the urging member 310
Is formed somewhat wider than the gripping member 304, and
The grip member 304 is formed somewhat wider than the pressing member 309.

One end of the urging member 310 is
As shown in (B), the forked arms 310A, 310A extend along the longitudinal direction thereof, and the grip member 304 is provided.
From outside near the one end 304A of the
A, 310A sandwich the engagement holes 304B, 30B respectively provided in the two side walls of the gripping member 304.
4B (see FIG. 9C) and each of the arms 310A and 310A.
A engaging holes 310B, 310B provided near the tip of A
At this time, the rotating shaft 311 is inserted, whereby the urging member 310 is rotatably engaged in the vicinity of one end 304A of the gripping member 304.

A portion near the other end of the biasing member 310 is a grip portion 310D for the user to hold the ultrasonic stapler 300 with a handle.

The gripping member 304 is provided with a circular hole 304C near one end 304A thereof (see FIG. 9C), and the horn 103 is inserted into the circular hole 304C.
The ultrasonic vibrator 2 and the horn 103 are held. That is,
The inner diameter of the through hole 304C is set smaller than the flange 103D of the horn 103, and the horn 103
Is inserted into the upper and lower portions of the flange 103D via the interposing members 42, 42, respectively, and is clamped from above by the mounting member 241. Further, the mounting member 241 is fixed to the gripping member 304 by the screw 43, whereby the horn portion is formed. 103 and the ultrasonic transducer 2 are mounted on the grip member 304.

Further, the rotation end 304 of the grip member 304
A is provided with a plastic or resin cover 206 that houses the ultrasonic transducer 2 inside.

On the other hand, the vicinity of the other end of the grip member 304 is a grip portion 304C for the user to hold the ultrasonic stapler 300 with the handle.

At the intermediate portion of the grip member 304, the pressing member 3
09 is rotatably connected via a rotating shaft 391. The rotating end 309A of the pressing member 309 includes
Machined surface 1 of horn 103 mounted on gripping member 304
A contact member 391 that comes into contact with 03A is provided.

The pressing member 309 is
By the return spring 7 provided between the grip member 9 and the grip member 304, a return force is urged in a direction in which the rotating end 309A is separated from the processing surface 103A of the horn portion 103 provided on the grip member 304. I have. That is, as shown in FIG. 9A, one end of the return spring 7 has a gripping member 30.
4 and the other end is connected to the pressing member 309, so that the gripping member 304 and the pressing member 309 rotate in the direction in which the processing surface 103A of the horn 103 and the contact member 391 approach each other. In this case, the return force is applied. At the same time, since the both end portions are fixed, the gripping member 304 and the pressing member 309 are regulated so as not to be separated from the natural length of the return spring 7.

The pressing member 309 is disposed so as to pass between the two arms 310 A and 310 A of the urging member 310, and rotates in a direction in which the urging member 310 approaches the grip member 304. By moving, the lower part of the pressing member 309 is moved to the inner wall end 310 of the urging member 310.
C (see FIG. 9 (B)), and is pushed up, so that the contact member 391 becomes the processing surface 103 of the horn portion 103.
A close to and touches A.

Between the pressing member 309 and the gripping member 304, a micro switch 8 is provided on the inner wall surface of the gripping member 304 with the push button side facing the pressing member 309 side. For this reason, the grip member 304 and the pressing member 309
Is turned in the direction to approach, the push button of the microswitch 8 is pressed by the pressing member 309.

Reference numeral L denotes a lead wire for connecting the ultrasonic switch (not shown) and the microswitch 8, and is provided inside the substantially U-shaped cross section of the gripping member 304. The wiring from the microswitch 8 to the electrode plate of the ultrasonic transducer 2 is not shown.

The operation of another modified example having the above-described configurations will be described. First, the user of the ultrasonic stapler 300 grasps each grip portion 3 of the grip member 304 and the urging member 310.
The ultrasonic stapler 300 is transported to a position where the object to be welded can be sandwiched between the processing surface 103A of the horn portion 103 and the contact member 391 while holding the members 04C and 310D.

The grip portion 304C of the grip member 304
And the grip portion 310D of the biasing member 310 grip these in a direction approaching each other. When the urging member 310 rotates in the direction approaching the gripping member 304, the rotating end 309 of the pressing member 309 is moved through the inner wall end 310C.
9A is urged upward in FIG. 9A, whereby the object to be welded is sandwiched between the processing surface 103A and the contact member 391, and at the same time, the push button of the microswitch 8 is pressed by the pressing member. 309 is pressed and applied, and the ultrasonic vibrator 2 is driven, amplified by the horn 103 and transmitted to the object to be welded. As a result, the sandwiched object to be welded causes melting, and welding is performed.

As described above, in the other modification, the horn 103 is gripped by gripping the gripping member 304 and the urging member 310.
Since the workpiece is sandwiched between the processing surface 103A and the contact member 391 to perform the processing, the portability can be improved as in the first embodiment.

Further, since the gripping member 304, the pressing member 309, and the urging member 310 are formed to have a substantially U-shaped cross section and their opening sides are opposed to each other, the ultrasonic wave is applied to the region inside the substantially U-shape. Stapler wiring, micro switch 3
08 or the like can be stored.

The gripping member 304, the pressing member 309, and the urging member 310 are formed of metal members having a substantially U-shaped cross section, and are connected by the respective rotating shafts 311 and 391. The main body portion of the ultrasonic stapler 300 is configured with a simple and small number of parts, which enables a reduction in parts costs and an improvement in productivity.

[0109]

According to the first aspect of the present invention, since the invention is constructed and functions as described above, the portability is improved, and accordingly, as in the conventional tabletop and stationary ultrasonic welding machines. There is no need to transport the object to be welded to the ultrasonic welding machine, the working area is expanded, the ultrasonic stapler itself can be moved with the gripping member in hand, and ultrasonic welding can be performed, for example, repair inside the machine This has the effect that it can be used in a narrow area such as.

Further, unlike the prior art, a moving device such as an air cylinder for moving the ultrasonic output means, a supporting member for supporting the device, and a base member necessary for fixing and holding the object to be welded are not required. It is possible to improve the productivity by reducing the cost of parts and the number of parts
Further, the size and weight of the entire device can be reduced.

Further, since the holding portion such as the horn portion of the gripping member is bent, the user of the ultrasonic stapler can twist the wrist in accordance with the object to be welded, as compared with the case where the holding portion is not bent. There is no need to perform the operation, and therefore, it is possible to reduce the burden on the user and provide an ultrasonic stapler excellent in usability.

In the second aspect of the invention, portability is improved in the same manner as in the first aspect of the invention. And
Since the gripping member and the pressing member are formed in a U-shaped cross section and the opening sides are opposed to each other, it is possible to store the detailed configuration such as the wiring of the ultrasonic stapler in the area inside the U-shape. Becomes

Further, since the gripping member and the pressing member are rotatably engaged by the one engaging projection and the other engaging hole, the main body of the ultrasonic stapler is composed of only two parts. Further, since an independent separate member for allowing free rotation is not required, the number of parts can be significantly reduced, and the cost of parts and the productivity can be reduced.

Since the present invention is configured and functions as described above, according to this, it is possible to provide an excellent breath collecting device which has not been conventionally provided.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a first embodiment of the present invention.

FIG. 2 is a partial extraction diagram showing an ultrasonic transducer and a horn section disclosed in FIG. 1;

FIG. 3 shows the pressing member disclosed in FIG. 1, and FIG. 3 (A) is an explanatory view showing details of an upper half of the pressing member.
FIG. 3B is a sectional view taken along line XX of FIG.

FIG. 4 shows the main body cover disclosed in FIG. 1, and FIG.
Is a perspective view, and FIG. 4B is a cross-sectional view.

FIG. 5 is an explanatory diagram showing a state in which the first embodiment is held in a hand.

FIG. 6 is an explanatory view showing a state where a comparative example is held in a hand.

FIG. 7 is a diagram showing a second embodiment of the present invention, and FIG.
7A is a partially cutaway front view, and FIG. 7B is a cross-sectional view taken along line YY of FIG. 7A.

FIG. 8 is a partially cutaway front view showing a modification.

9A and 9B are views showing another modification, FIG. 9A is a partially cutaway front view, and FIG. 9B is a front end side of the urging member disclosed in FIG. 9A. FIG. 9 is a partial perspective view of FIG.
FIG. 10C is a cross-sectional view near one end of the gripping member disclosed in FIG.

FIG. 10 is a configuration diagram showing a conventional example.

[Explanation of symbols]

 2 Ultrasonic vibrator 3,103 Horn 3A, 103A Work surface 4,104 Grip member 4A, 104A One end 9,109 Pressing member 9A, 109A Rotating end 104B Engagement hole 109B Engagement protrusion

Claims (2)

[Claims] An ultrasonic vibrator for oscillating ultrasonic vibration,
A horn part which amplifies the ultrasonic vibration and has a machined surface at the end thereof, a grip member integrally holding them at one end, and a rotatably engaged with the grip member. A pressing member having a pressing surface opposed to a processing surface of the horn portion at a rotating end; and an end of the gripping member that holds the ultrasonic vibrator and the horn portion, and An ultrasonic stapler characterized by being formed by being bent by an amount. 2. An ultrasonic vibrator for oscillating ultrasonic vibration,
A horn part which amplifies the ultrasonic vibration and has a machined surface at the end thereof, a grip member integrally holding them at one end, and a rotatably engaged with the grip member. A pressing member having a pressing surface opposed to a processing surface of the horn portion at a rotating end, wherein the gripping member and the pressing member are formed from a material having elasticity by making their cross sections substantially U-shaped. The gripping member and the pressing member are opposed to each other at the opening sides of the U-shaped cross section, and the other member is inserted inside one of the members at the engaging portion between the gripping member and the pressing member. An engaging projection is provided on the outside of both side walls of the inserted member,
An ultrasonic stapler, wherein engagement holes corresponding to the engagement protrusions are provided inside both side walls of the other member.