US3861669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for feeding sheet-like articles from a stack of articles
Assignee: Toshiba Corp
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Filing: 1973-06-13
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Granted: 1975-01-21
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Expires: 1993-06-13
Abstract
Abstract Apparatus for feeding or taking out sheet-like articles which comprises a vacuum suction device having a suction surface bored with suction openings; an endless belt designed to travel in contact with the suction surface and provided with a plurality of suction regions arranged at a prescribed interval so as to suck through suction holes of the suction regions sheet-like articles which contact the outer surface of the suction regions when the suction holes are brought over the suction openings of the suction surface of the vacuum suction device; and a feeding means for delivering sheet-like articles in succession to the endless belt for contact therewith, wherein the suction regions of the endless belt have a larger friction coefficient than any other surface portion of the belt.
Inventors
- 👤 Mitsuo Kubo
- 👤 Toshio Yokosuka
- 👤 Shunichi Nakajima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:19
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/08; B65H3/12; B65H3/124; B65H5/00; B65H5/22; B65H5/222; B65H5/224; B65H2301/00; B65H2301/30; B65H2301/32; B65H2301/321; B65H2406/00; B65H2406/30; B65H2406/32; B65H2406/322; B65H2701/00; B65H2701/10; B65H2701/19; B65H2701/1916
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
192 words
Apparatus for feeding or taking out sheet-like articles comprising: a vacuum suction device having a suction surface with a plurality of suction openings therein; an endless belt having a plurality of suction regions, each suction region being perforated with a plurality of suction holes and arranged at a predetermined interval along said belt so as to suck sheet-like articles to the outer surface of said suction region when the suction holes thereof pass over the suction openings of the vacuum suction surface while the endless belt travels in contact with the suction surface of the vacuum suction device, said suction region of said belt having a larger coefficient of friction than any other surface portion of said belt; feeding means for conducting sheet-like articles in succession to the endless belt for contact therewith; and a baffle plate having a plutaliyy of projections directed toward said belt passage, at least one of said projections being at substantially a right angle to said belt and being extended in the crosswise direction of said belt for defining at its end a predetermined gap width with the outer surface of said suction regions of said belt.
Claim 2
Dependent Claim
192 words
Apparatus for feeding or taking out sheet-like articles comprising: a vacuum suction device having a suction surface with a plurality of suction openings therein; an endless belt having a plurality of suction regions, each suction region being perforated with a plurality of suction holes and arranged at a predetermined interval along said belt so as to suck sheet-like articles to the outer surface of said suction region when the suction holes thereof pass over the suction openings of the vacuum suction surface while the endless belt travels in contact with the suction surface of the vacuum suction device, said suction region of said belt having a larger coefficient of friction than any other surface portion of said belt; feeding means for conducting sheet-like articles in succession to the endless belt for contact therewith; and a baffle plate having a plutaliyy of projections directed toward said belt passage, at least one of said projections being at substantially a right angle to said belt and being extended in the crosswise direction of said belt for defining at its end a predetermined gap width with the outer surface of said suction regions of said belt.
Claim 3
Dependent Claim
14 words
Apparatus according to claim 1 wherein said baffle plate is made of elastic material.
Claim 4
Dependent Claim
30 words
Apparatus according to claim 1 wherein the outer surfaces of the suction regions of the belt are substantially flush with that of any other outer surface portion of the belt.
Claim 5
Dependent Claim
36 words
Apparatus according to claim 3 wherein the outer surfaces of the suction regions of the belt have a plurality of irregularities therein, said irregularities comprising a plurality of mutually intersecting grooves cut in said outer surfaces.
Claim 6
Dependent Claim
24 words
Apparatus according to claim 1 wherein the outer surfaces of the suction regions of the belt outwardly project from the body of the belt.
Claim 7
Dependent Claim
44 words
Apparatus according to claim 5 wherein said suction regions comprise at least one suction board including a flexible peripheral portion surrounding at least one suction hole of the belt and projecting outward from the outer surface of the belt having said suction holes therein.
Claim 8
Dependent Claim
61 words
Apparatus according to claim 1 comprising upper and lower guide members extending partly along the upper and lower edges of the travelling belt respectively, the suction surface of the vacuum suction device being disposed between said guide members; and wherein the outer surfaces of said guide members is substantially flush with the outer surfaces of the suction regions of the belt.
Claim 9
Dependent Claim
61 words
Apparatus according to claim 7 wherein said baffle plate has first, second and third projections, said first and third projections defining at their ends a predetermined gap width with the outer surfaces of said upper and lower guide members respectively; and said first projection which faces the upper guide member having its end bent in the travelling direction of the belt.
Claim 10
Dependent Claim
172 words
Apparatus according to claim 1 further comprising upper and lower guide members which extend partly along the upper and lower edges of the travelling belt respectively, to receive the suction surface of the vacuum suction device therebetween, the outer surfaces of the upper and lower guide members being substantially flush with the outer surfaces of the suction regions of the belt; a fixed lever disposed in front of the suction surface of the vacuum suction device and extending substantially parallel with the belt; and wherein each of said suction regions of the belt project outwardly from the body of the belt and further has a recess extending lengthwise of said suction region for its full length, the inner surface of the lever closely facing said recess, the outer surface of the lever being lower than the outer surface of the outwardly projecting guide members, and said baffle plate having first, second and third projections, said second projecting defining at its end a prescribed gap width with the outer surface of the lever.
Claim 11
Dependent Claim
24 words
Apparatus according to claim 9 wherein the recesses of the suction regions of the belt extend along the lengthwise central line of the belt.
Claim 12
Dependent Claim
49 words
Apparatus according to claim 9 wherein the outer surface of the lever has a section having a larger coefficient of friction than any other outer surface portion of the lever; and said second projection of said baffle plate is disposed to face said section of large coefficient of friction.
References Cited (Backward Citations)
US2837333A
Cited
US3048393A
Cited
US2845267A
Cited
US2905309A
Cited
US3198517A
Cited
US3620526A
Cited
US3708058A
Cited
US3735976A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |