US3816882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamping units for use in packaging
Assignee: Panasonic Holdings Corp
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Filing: 1971-12-20
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Granted: 1974-06-18
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Expires: 1991-12-20
Abstract
Abstract A clamping unit comprising a member (A) having a cylindrical portion adapted to be inserted into a through-hole formed in a wall of a packaging box, a flange portion adapted to be closely fitted over the peripheral edge of said through-hole, an axial through-hole and grooves circumferentially formed in the end surface of said cylindrical portion or the front surface of said flange portion along the peripheral edge of said through-hole; and a member (B) having a cylindrical portion adapted to be inserted into a through-hole formed in the confronting wall of another packaging box, a flange portion adapted to be fitted over the peripheral edge of said through-hole, engaging projections adapted to be inserted into the axial through-hole of said member (A) and locking means adapted to elastically engage the end surface of the cylindrical portion or the inner peripheral surface of the axial through-hole of said member (A), said member (B) being inserted into said member (A), whereby the locking means of said member (B) are strongly elastically forced into the grooves of said member (A) and said member (A) is disengageably positively secured to said member (B).
Inventors
- 👤 K Maeda
- 👤 S Fujiwara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:22
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/02; B; B65; B65D; B65D55/00; B65D55/02; B65D55/10; B65D67/00; B65D67/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
287 words
A clamping unit for use in packaging, comprising a member (A) having a cylindrical portion adapted to be fitted into a throughhole formed in the wall of one of boxes to be coupled together, a flange portion adapted to be fitted over the peripheral edge of said through-hole, grooves substantially axially formed in the surface of the axial bore of said cylindrical portion, steps formed at the end surface of said cylindrical portion closer to said flange portion and extending circumferentially from said grooves respectively, arcuate grooves formed in said steps respectively, said respective arcuate grooves being provided with an engaging depression at end portion thereof, and arcuate grooves formed at the other end surface of said cylindrical portion and extending circumferentially from said grooves respectively, said respective arcuate grooves being provided with an extending depression at end portion thereof; and a member (B) having a cylindrical portion adapted to be fitted into a throughhold formed in the confronting wall of the other box, a flange portion adapted to be fitted over the peripheral edge of said through-hole, an engaging projection adapted to be inserted into the axial bore of the cylindrical portion of said member (A), and engaging arms provided with engaging projections and engaging projections formed at the end surfaces of said engaging projection and said cylindrical portion respectively for elastic engagement with said member (A); said members (A), (B) being molded of a synthetic resin material and said member (B) being inserted into said member (A) and turned relative to said member (A), whereby said engaging projections of said engaging arms and said engaging projections are engaged with said engaging depressions of said arcuate grooves respectively and said members (A), (B) are coupled together.
Claim 2
Dependent Claim
287 words
A clamping unit for use in packaging, comprising a member (A) having a cylindrical portion adapted to be fitted into a throughhole formed in the wall of one of boxes to be coupled together, a flange portion adapted to be fitted over the peripheral edge of said through-hole, grooves substantially axially formed in the surface of the axial bore of said cylindrical portion, steps formed at the end surface of said cylindrical portion closer to said flange portion and extending circumferentially from said grooves respectively, arcuate grooves formed in said steps respectively, said respective arcuate grooves being provided with an engaging depression at end portion thereof, and arcuate grooves formed at the other end surface of said cylindrical portion and extending circumferentially from said grooves respectively, said respective arcuate grooves being provided with an extending depression at end portion thereof; and a member (B) having a cylindrical portion adapted to be fitted into a throughhold formed in the confronting wall of the other box, a flange portion adapted to be fitted over the peripheral edge of said through-hole, an engaging projection adapted to be inserted into the axial bore of the cylindrical portion of said member (A), and engaging arms provided with engaging projections and engaging projections formed at the end surfaces of said engaging projection and said cylindrical portion respectively for elastic engagement with said member (A); said members (A), (B) being molded of a synthetic resin material and said member (B) being inserted into said member (A) and turned relative to said member (A), whereby said engaging projections of said engaging arms and said engaging projections are engaged with said engaging depressions of said arcuate grooves respectively and said members (A), (B) are coupled together.
Claim 3
Dependent Claim
213 words
A clamping unit for use in packaging, comprising a member (A) having a cylindrical portion adapted to be fitted into a through-hole formed in the wall of one of boxes to be couPled together, a flange portion adapted to be fitted over the peripheral edge of said through-hole, grooves substantially axially formed in the inner surface of said cylindrical portion, steps formed at one end surface of said cylindrical portion and extending circumferentially from said grooves respectively, arcuate grooves formed in said steps respectively, and engaging depressions formed at the terminal ends of said grooves respectively; and a member (B) having a cylindrical portion adapted to be fitted into a through-hole formed in the confronting wall of the other box, a flange portion adapted to be fitted over the peripheral edge of said through-hole, an engaging projection adapted to be inserted into the axial bore of the cylindrical portion of said member (A), engaging arms adapted to elastically engage the arcuate grooves of said member (A), engaging projections formed on said engaging arms respectively, and a handle formed at the end surface of the cylindrical portion closer to said flange portion; said member (B) being inserted into said member (A) and turned in one direction to be disengageably coupled with said member (A).
Claim 4
Dependent Claim
213 words
A clamping unit for use in packaging, comprising a member (A) having a cylindrical portion adapted to be fitted into a through-hole formed in the wall of one of boxes to be couPled together, a flange portion adapted to be fitted over the peripheral edge of said through-hole, grooves substantially axially formed in the inner surface of said cylindrical portion, steps formed at one end surface of said cylindrical portion and extending circumferentially from said grooves respectively, arcuate grooves formed in said steps respectively, and engaging depressions formed at the terminal ends of said grooves respectively; and a member (B) having a cylindrical portion adapted to be fitted into a through-hole formed in the confronting wall of the other box, a flange portion adapted to be fitted over the peripheral edge of said through-hole, an engaging projection adapted to be inserted into the axial bore of the cylindrical portion of said member (A), engaging arms adapted to elastically engage the arcuate grooves of said member (A), engaging projections formed on said engaging arms respectively, and a handle formed at the end surface of the cylindrical portion closer to said flange portion; said member (B) being inserted into said member (A) and turned in one direction to be disengageably coupled with said member (A).
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |