Patent US3658077A successfully refreshed from Google Patents.
US3658077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatically openable and closable umbrella
Assignee: Ideal KK
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Filing: 1970-07-30
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Granted: 1972-04-25
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Expires: 1990-07-30
Abstract
Abstract An easily and smoothly automatically openable and closable umbrella is obtained from the arrangement comprising a tubular shaft having an outer tubular shaft member slidably housing the rein an upper, an intermediate and a lower independent inner tubular shaft member, a first ring fixed to the upper shaft member for carrying ribs, an umbrella-opening compressible first spring means mounted on a core rod and provided between the intermediate and the lower shaft members in said shaft, an umbrella closing compressible spring means provided between said rib and said fixed ring at a spaced relation form the rib, a second ring fixed to the top of the outer shaft member and positioned below said first fixed ring and serving to support rib-supporting extensible rods, a third ring below said second ring to carry rods for supporting said extensible rods, a fourth ring for carrying spokes which support the ribs, an umbrellaopening compressible second spring means mounted on said shaft for urging the upper and intermediate members away, umbrellaopening latch means capable of engaging both the outer shaft member and the fourth ring, and umbrella-closing latch means provided in the lower shaft member.
Inventors
- 👤 Yoshio Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:18
CPC Classifications
A; A45; A45B; A45B25/00; A45B25/14; A45B25/143
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
329 words
An automatically openable and closable umbrella comprising: a shaft having a tubular outer shaft member (1) slidably housing therein an upper (2), an intermediate (3) and a lower (4) tubular shaft members, a first ring (6) fixed to the upper portion of said upper shaft member (1) and pivotably carrying ribs (5) and umbrella-closing compressible spring means (7), (8) fixed at one end to an intermediate portion of said ribs and at the other end to said fixed ring at a spaced position from the rib pivoted to said fixed ring, a second ring (12) mounted on said shaft below said first ring (6) and fixed to said outer shaft member (1) and pivotably carrying extensible rods (14) pivotably supporting said ribs (5), a third ring (17) mounted on said shaft below said second ring (12) and pivotably carrying supporting rods (18) pivotably supporting said extensible rods (14), a fourth ring (24) mounted on said shaft below said third ring (17) and pivotably carrying, at a site other than the pivotal point of each of said extensible rods (14), spokes (26) pivotably supporting said ribs (5), compressible first spring means (10) for opening the umbrella and provided between said intermediate (3) and said lower (4) shaft members to urge them apart, compressible second spring means (23) for opening the umbrella mounted on said shaft between said third ring (17) and a washer ring (22) securely attached to said intermediate shaft member (3) so as to slide on said outer shaft member (1), said second spring means being capable of urging said upper and intermediate shaft members (2), (3) apart with respect to said outer and lower shaft members (1), (4), latch means for opening the umbrella capable of disengageably engaging said fourth ring, and latch means for closing the umbrella provided in the lower portion of the lower shaft member (4) and capable of releasing the outer shaft member (1) from its engagement with the lower shaft member (4).
Claim 2
Dependent Claim
329 words
An automatically openable and closable umbrella comprising: a shaft having a tubular outer shaft member (1) slidably housing therein an upper (2), an intermediate (3) and a lower (4) tubular shaft members, a first ring (6) fixed to the upper portion of said upper shaft member (1) and pivotably carrying ribs (5) and umbrella-closing compressible spring means (7), (8) fixed at one end to an intermediate portion of said ribs and at the other end to said fixed ring at a spaced position from the rib pivoted to said fixed ring, a second ring (12) mounted on said shaft below said first ring (6) and fixed to said outer shaft member (1) and pivotably carrying extensible rods (14) pivotably supporting said ribs (5), a third ring (17) mounted on said shaft below said second ring (12) and pivotably carrying supporting rods (18) pivotably supporting said extensible rods (14), a fourth ring (24) mounted on said shaft below said third ring (17) and pivotably carrying, at a site other than the pivotal point of each of said extensible rods (14), spokes (26) pivotably supporting said ribs (5), compressible first spring means (10) for opening the umbrella and provided between said intermediate (3) and said lower (4) shaft members to urge them apart, compressible second spring means (23) for opening the umbrella mounted on said shaft between said third ring (17) and a washer ring (22) securely attached to said intermediate shaft member (3) so as to slide on said outer shaft member (1), said second spring means being capable of urging said upper and intermediate shaft members (2), (3) apart with respect to said outer and lower shaft members (1), (4), latch means for opening the umbrella capable of disengageably engaging said fourth ring, and latch means for closing the umbrella provided in the lower portion of the lower shaft member (4) and capable of releasing the outer shaft member (1) from its engagement with the lower shaft member (4).
Claim 3
Dependent Claim
232 words
An automatically openable and closable umbrella according to claim 1, in which: said umbrella-closing compressible spring means comprises a compressible coil spring (7) and a rod (8) having one end secured to said coil spring (7) and the other end pivotably attached to said fixed first ring (6) at a position spaced from the rib pivoted to said first ring (6); a grip (9) is secured to the lower portion of the lower shaft member (4); said third ring (17) has a tubular sleeve (16) secured thereto and provided with a longitudinally extending slit (19); the secure attachment of said washer ring (22) to the intermediate shaft member (3) is effected by a pin (21) slidably received through an elongated slit (19) of said tubular sleeve (16) and through an elongated slit (20) of the outer shaft member (1); said extensible rod (14) comprises two members (14), (14a) one of which is slidably received in the other; said latch means for opening the umbrella comprises a member (38) capable of latching said fourth ring (24) with respect to the outer shaft member (1); said latch means for closing the umbrella comprises a member (37) capable of latching said outer shaft member (1) with respect to the lower shaft member (4); and said two latch means are adapted to be actuated by a double-acting depressable means (35) provided between these two latch means.
Claim 4
Dependent Claim
118 words
An automatically openable and closable umbrella according to claim 1, in which: said umbrella-closing compressible first spring means (10) is a coil spring mounted on a guide core rod (29) received in the outer shaft member (1) for sliding axially thereof; said guide core rod (29) has an upper end portion secured to the lower end portion of the intermediate shaft member (3) and has a lower end portion secured to a tubular stopper member (31) having an elongated slit (33) for restricting the sliding movement of the lower shaft member (4) to cause the intermediate shaft member (3) to move closer to or away from the lower shaft member (4) via the umbrella-opening first spring means (10).
Claim 5
Dependent Claim
101 words
An automatically openable and closable umbrella according to claim 1, in which: said umbrella-opening latch means comprises a member (38) secured to the lower portion of the outer shaft member (1) to latch said fourth ring 24 with respect to said outer shaft member (1), said member (38) having two engaging portions (42a), (42b) capable of locking a rib-anchoring member (40) in two steps, said rib-anchoring member (40) being mounted slidably on the outEr shaft member and housing therein a compressible spring means (41) normally urging the rib-anchoring member (40) to move downwardly with respect to the outer shaft member (1).
Claim 6
Dependent Claim
119 words
An automatically openable and closable umbrella according to claim 1, in which: said umbrella-opening latch means has a locking member (44) pivotably attached to the fourth ring (24) and adapted to engage a small opening (1b) formed in the lower portion of the outer shaft member (1), said umbrella-closing latch means has a spring member (48) received in the lower shaft member (4) and equipped with a locking projection (48a) formed integrally therewith for causing said outer shaft member (1) to disengageably engage the lower shaft member (4) through their aligned openings, said fourth ring (24) has a cover member (49) for preventing casual depression of the locking projection (48a) during the downward movement of said fourth ring (24).
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) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |