# US 10,307,968 B2 · Holding structure of an ultrasonic vibration transmission mechanism

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- Number: US 10,307,968 B2
- Document ID: US10307968B2
- Status: Granted
- Kind: B2
- Application number: 15/750,408
- Filed: 2016-08-03
- Published: 2018-08-09
- Granted: 2019-06-04
- Earliest claimed: 2015-08-06
- Assignees: Branson Ultrasonics Corporation
- Applicants: Branson Ultrasonics Corporation
- Inventors: Osamu Tamamoto; Jun Pang
- Web page: https://patentgrep.com/patent/US10307968B2

## CPC

- B29C 66/816: {characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps}
- B23K 20/10: making use of vibrations, e.g. ultrasonic welding
- B23K 20/106: {Features related to sonotrodes}
- B29C 65/08: using ultrasonic vibrations {(non-plastics element to plastics elements B29C65/645)}
- B29C 65/081: {having a component of vibration not perpendicular to the welding surface}
- B29C 66/1122: {Single lap to lap joints, i.e. overlap joints (B29C66/45, B29C66/472, B29C66/52272 take precedence)}
- B29C 66/41: {Joining substantially flat articles (B29C66/47 and subgroups take precedence); Making flat seams in tubular or hollow articles (B29C66/51 and subgroups take precedence)}
- B29C 66/45: {Joining of substantially the whole surface of the articles (methods or apparatus for laminating B32B37/00)}
- F16F 15/04: using elastic means (single elements or their attachment F16F1/00 - F16F13/00); {(F16F15/023, F16F15/03 take precedence)}
- H02N 2/04: Constructional details
- H10N 30/88: Mounts; Supports; Enclosures; Casings
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B23K: SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- H02N: ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H10N: ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR

## Abstract

A holding structure (2) in an ultrasonic vibration welding device that welds workpieces by applying ultrasonic waves to the workpieces holds an ultrasonic vibration transmitter (horn) (5) bearing the transmission of longitudinally vibrating ultrasonic waves in holding members (8, 8). The horn comprises a horn body (51) having the length of one-half the wavelength λ of the ultra-sonic vibration. Holding structure (2) includes holders (7x, 7y) having a prescribed volume and thin sheet connectors (6a, 6b) placed at different positions (Pa, Pb) on the horn body (51). The horn body (51) is fixed to holding members (8, 8) by means of the respective holders (7x, 7y).

## Claims

### Claim 1

A holding structure of an ultrasonic vibration mechanism, comprising:
a horn body formed as a solid body having a length that is nearly a length of half a wavelength of an applied ultrasonic wave applied to the horn body by an ultrasonic vibration welding device in which the holding structure is disposed;
the horn body having a first position Pb that is at an input end at which the applied ultrasonic wave is applied to the horn body and a second position Pa spaced a prescribed distance from the first position Pb that is ¼ a wavelength of the applied ultrasonic wave;
at least one holder disposed on a side of the horn body with thin sheet connectors associated with that holder extending between that holder and the horn body to maintain a space between the horn body and that holder, the thin sheet connectors including a flat thin sheet connector extending between the horn body from the first position Pb of the horn body to that holder, and a S-shaped thin sheet connector extending between the horn body from the second position Pa to that holder;
the horn body, each holder and associated thin sheet connectors constructed in one piece; and
each holder holders affixable to an associated holding element of the ultrasonic vibration welding device.

### Claim 2 (depends on 1)

The holding structure of the ultrasonic vibration transmission mechanism of claim 1 wherein the first position Pb is at an anti-nodal area of the horn body when the applied ultrasonic wave is applied to the horn body with each flat thin sheet connector interposed between the anti-nodal area and its associated holder and the second position Pa is at a nodal area of the horn body with each S-shaped thin sheet connector interposed between the nodal area and its associated holder.

### Claim 3 (depends on 1)

The holding structure of the ultrasonic vibration transmission mechanism of claim 1 wherein each S-shaped thin sheet connector is constructed at a prescribed thickness of less than 5/100 of the wavelength of the ultrasonic wave, each flat thin sheet connector is constructed at a prescribed thickness of less than 3/100 of the wavelength of the ultrasonic wave, and a flat surface of each S-shaped thin sheet connector and each flat thin sheet connector is disposed parallel to a wave surface of longitudinally vibrating ultrasonic waves of the applied ultrasonic wave.

### Claim 4 (depends on 1)

The holding structure of the ultrasonic vibration transmission mechanism of claim 1 including at least another said holder disposed on another side of the horn body.

### Claim 5 (depends on 4)

The holding structure of the ultrasonic vibration mechanism of claim 4 wherein the sides of the horn body on which the holders are disposed are opposite sides of the horn body.

### Claim 6 (depends on 2)

The holding structure of the ultrasonic vibration transmission mechanism of claim 2 including at least another said holder disposed on another side of the horn body.

### Claim 7 (depends on 6)

The holding structure of the ultrasonic vibration mechanism of claim 6 wherein the sides of the horn body on which the holders are disposed are opposite sides of the horn body.

### Claim 8 (depends on 3)

The holding structure of the ultrasonic vibration transmission mechanism of claim 3 including at least another said holder disposed on another side of the horn body.

### Claim 9 (depends on 8)

The holding structure of the ultrasonic vibration mechanism of claim 8 wherein sides of the horn body on which the holders are disposed are opposite sides of the horn body.