Patent US4140414A successfully refreshed from Google Patents.
US4140414A
Expired / Lapsed
US
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Wedge-clamped scaffold joint
Assignee: Plettac GmbH
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Filing: 1978-02-02
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Granted: 1979-02-20
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Expires: 1998-02-02
Abstract
Abstract An arrangement for connecting the ties to the uprights of a scaffolding includes a plurality of vertically elongated openings in the uprights, an end projection on a wedge-shaped end plate of the tie which has an enlarged end portion which is introduced into the interior of the upright through an enlargement of the opening while the stem of the projection is received in the opening when the enlarged end portion of the projection is received in the interior of the tubular upright, and a wedge element which is permanently mounted on the projection and interposed between the upright and the wedge-shaped end plate of the tie in the assembled position of the tie with the upright. The wedge-shaped end plate of the tie may be mounted on the remainder of the tie for pivoting relative thereto, and the remainder of the tie may consist of two or more components of similar configurations which are respectively received one within the other, being arrestable in a plurality of arresting positions to change the effective length of the tie.
Inventors
- 👤 Klaus Buttgereit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:22
CPC Classifications
E; E04; E04G; E04G7/00; E04G7/30; E04G7/302; E04G7/303; E04G7/304; A; A47; A47B; A47B57/00; A47B57/30; A47B57/48; A47B57/50; E04B; E04B1/00; E04B1/38; E04B1/58; E04B1/5825; E04B1/5837; E04B1/585; E04G7/02; E04G7/06; E04G7/22; E04G7/306; E04G7/307; F; F16; F16B; F16B12/00; F16B12/10; F16B12/28; F16B12/34; F16B7/00; F16B7/04; F16B7/044; F16B7/0446; F16B7/0453; F16B2/00; F16B2/02; F16B2/14; F16B21/00; F16B21/09; F16B2200/00; F16B2200/40; Y; Y10; Y10T; Y10T403/00; Y10T403/30; Y10T403/32; Y10T403/32114; Y10T403/32131; Y10T403/32155; Y10T403/70; Y10T403/7062; Y10T403/7064; Y10T403/7066; Y10T403/76
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
133 words
In a support structure, particularly scaffolding, storage rack, shelving and the like, a combination comprising a first support element having a contact surface; a second support element having a reaction surface which bounds a converging gap with said contact surface when said support elements assume an assembled position relative to one another; and means for detachably connecting said support elements to each other in said assembling position thereof, including a projection rigid with and extending beyond said reaction surface of said second support element, means for defining at least one recess in said first support element at said contact surface thereof which arrestingly receives said projection in said assembling position, and a wedge element interposed in said converging gap between said contact and reaction surfaces of said support elements in said assembled position.
Claim 2
Dependent Claim
133 words
In a support structure, particularly scaffolding, storage rack, shelving and the like, a combination comprising a first support element having a contact surface; a second support element having a reaction surface which bounds a converging gap with said contact surface when said support elements assume an assembled position relative to one another; and means for detachably connecting said support elements to each other in said assembling position thereof, including a projection rigid with and extending beyond said reaction surface of said second support element, means for defining at least one recess in said first support element at said contact surface thereof which arrestingly receives said projection in said assembling position, and a wedge element interposed in said converging gap between said contact and reaction surfaces of said support elements in said assembled position.
Claim 3
Dependent Claim
30 words
A combination as defined in claim 1, wherein said second support element includes a body member and a reaction member connected to said body member and having said reaction surface.
Claim 4
Dependent Claim
30 words
A combination as defined in claim 2, wherein said support elements are elongated; and wherein said reaction member is arranged at least at one end of said second support element.
Claim 5
Dependent Claim
58 words
A combination as defined in claim 3, wherein said defining means includes a wall portion of said first support element; wherein said recess is a through opening in said wall portion; and wherein said projection includes a stem received in said opening and an enlarged free end portion which engages behind said wall portion in said assembling position.
Claim 6
Dependent Claim
35 words
A combination as defined in claim 4, wherein at least said first support element is tubular; and wherein said wall portion is an arcuate portion of the circumferential wall of said tubular first support element.
Claim 7
Dependent Claim
40 words
A combination as defined in claim 4, wherein said first support element is an upright and said second support element a horizontal tie of the support structure; and wherein said through opening is elongated longitudinally of said first support element.
Claim 8
Dependent Claim
19 words
A combination as defined in claim 6, wherein said elongated through opening has an enlargement at one end thereof.
Claim 9
Dependent Claim
19 words
A combination as defined in claim 7, wherein said one end of said opening is the upper end thereo.
Claim 10
Dependent Claim
22 words
A combination as defined in claim 2; and further including means for permanently attaching said wedge element to said second support element.
Claim 11
Dependent Claim
50 words
A combination as defined in claim 9, wherein said attaching means includes an elongated slot in said wedge element having a predetermined width and receiving said projection for shifting and rotation of said wedge element relative to the latter, and a collar on said projection having dimensions exceeding said width.
Claim 12
Dependent Claim
55 words
A combination as defined in claim 2, wherein at least said first support element is tubular and said contact surface thereof is cylindrical; and wherein said wedge element has an engaging surface which contacts said contact surface of said first support element in said assembling position and is part-cylindrical in conformity to said contact surface.
Claim 13
Dependent Claim
41 words
A combination as defined in claim 2, wherein said wedge element has a face which is juxtaposed with said reaction surface of said reaction member and a U-shaped ridge at said face which contacts said reaction surface in said assembled position.
Claim 14
Dependent Claim
31 words
A combination as defined in claim 12, wherein said reaction member has a pair of parallel ribs which outwardly embrace said U-shaped ridge of said wedge element in said assembled position.
Claim 15
Dependent Claim
35 words
A combination as defined in claim 2, wherein said first support element is elongated; and wherein said defining means defines a plurality of additional recesses which are similar to and spaced from said one recess.
Claim 16
Dependent Claim
27 words
A combination as defined in claim 14, wherein said additional recesses are spaced from said one recess and from each other longitudinally of said first support element.
Claim 17
Dependent Claim
38 words
A combination as defined in claim 14, wherein said first support element has a circular cross section; and wherein said additional recesses are spaced from said one recess and from each other circumferentially of said first support element.
Claim 18
Dependent Claim
26 words
A combination as defined in claim 2; and further comprising means for pivotally connecting said reaction member to said body member of said second support element.
Claim 19
Dependent Claim
46 words
A combination as defined in claim 17, wherein said pivotally mounting means includes a mounting section of one of said members, a pivot mounted on said mounting section, and a projecting section of the other of said members which is mounted on said pivot for pivoting.
Claim 20
Dependent Claim
36 words
A combination as defined in claim 18, wherein said mounting section is bifurcated having two arms which embrace said projecting section; and wherein said pivot passes through both of said arms of said bifurcated mounting section.
Claim 21
Dependent Claim
31 words
A combination as defined in claim 19, wherein said bifurcated mounting section is so configurated as to permit said projecting section to pivot relative thereto about said pivot through approximately 180°.
Claim 22
Dependent Claim
28 words
A combination as defined in claim 1, wherein said second support element is elongated and includes at least two tubular components which are telescopically received within one another.
Claim 23
Dependent Claim
28 words
A combination as defined in claim 21; and further including means for arresting said tubular components in a plurality of telescoped arresting positions with respect to one another.
Claim 24
Dependent Claim
54 words
A combination as defined in claim 22, wherein said components include a plurality of orifices at least two of which are aligned with one another in each of said arresting positions; and wherein said arresting means includes at least one arresting pin which is received in said aligned orifices in said one arresting position.
Claim 25
Dependent Claim
49 words
A combination as defined in claim 23, wherein said arresting pin has a gripping portion; and wherein said arresting means further includes a resiliently yieldable bracket rigidly connected to said gripping portion of said arresting pin and partially embracing said second support element in each of said arresting positions.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-19 | 1982-08-21 | 1983-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-19 | 1986-08-21 | 1987-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-19 | 1990-08-21 | 1991-02-20 | $7700.00 | Window Closed / Lapsed |