US4574862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding gate
Assignee: EFAFLEX TRANSPORT und LAGER TECHNIK GmbH
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Filing: 1983-04-20
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Granted: 1986-03-11
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Expires: 2003-04-20
Abstract
Abstract A folding gate comprises two rectangular segments connected for articulation by hinges, said first segment being supported directly by a gate wing bearing. Said second segment includes a panel and a carrier structure to support the weight of the panel, said carrier structure comprises a pivot arm which is disposed at the upper edge of the second segment and from which the panel is suspended, wherein the pivot arm is connected by its one end to a carrier structure of the first segment in articulated fashion such that the pivot arm is movable not only about a vertical axis but to a limited extent also about a horizontal axis with respect to the first segment, and wherein the other end of the pivot arm is guided horizontally and supported vertically at a glide track arrangement by means of a guide roller. By this structure any impact hitting the panel of the second segment practically is not transmitted to the first segment. The weight of the second segment is carried approximately evenly by the glide track arrangement and by the first segment.
Inventors
- 👤 Gabriel Rejc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:24
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/48; E06B3/481; E06B3/70; E06B3/80; E06B3/805; E05; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/11
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
339 words
A folding gate which is disposed in a gate opening comprising: a substantially straight glide track arrangement means located at an upper limitation of the gate opening; at least one gate wing pivotable about a vertical axis in a gate wing bearing, the gate wing comprising first and second rectangular segments, hinge means for movably connecting the segments, the first segment being supported directly by the gate wing bearing, the second segment carrying a first glide roller means at an end of an upper edge remote from the first segment, the first glide roller means being guided horizontally by the glide track arrangement means; the first and second segments each including a panel and a carrier structure means for supporting the weight of the panel and to maintain the segments in associated bearings, the carrier structure means of the second segment comprising pivot arm means disposed at the upper edge of the second segment for suspending the second segment therefrom, the pivot arm means being connected at one end to the carrier structure means of the first segment for movement about a vertical axis and for a limited extent movement about a horizontal axis with respect to the first segment, another end of the pivot arm means carrying the first guide roller means and supported by the glide track arrangement means; the movement between the one end of the pivot arm means and the carrier structure means of the first segment is established by an intermediate piece including two pin bearings, one bearing pin extending in a vertical direction while the other bearing pin extends in a horizontal direction and the one pin bearing supporting the intermediate piece at the carrier structure means of the first segment while the other pin bearing supports the pivot arm means; and a carriage means traversing the glide track arrangement means, the other end of the pivot arm means being in supportive suspension from the carriage means for tilting the carriage means in any desired direction with respect to the pivot arm means.
Claim 2
Dependent Claim
339 words
A folding gate which is disposed in a gate opening comprising: a substantially straight glide track arrangement means located at an upper limitation of the gate opening; at least one gate wing pivotable about a vertical axis in a gate wing bearing, the gate wing comprising first and second rectangular segments, hinge means for movably connecting the segments, the first segment being supported directly by the gate wing bearing, the second segment carrying a first glide roller means at an end of an upper edge remote from the first segment, the first glide roller means being guided horizontally by the glide track arrangement means; the first and second segments each including a panel and a carrier structure means for supporting the weight of the panel and to maintain the segments in associated bearings, the carrier structure means of the second segment comprising pivot arm means disposed at the upper edge of the second segment for suspending the second segment therefrom, the pivot arm means being connected at one end to the carrier structure means of the first segment for movement about a vertical axis and for a limited extent movement about a horizontal axis with respect to the first segment, another end of the pivot arm means carrying the first guide roller means and supported by the glide track arrangement means; the movement between the one end of the pivot arm means and the carrier structure means of the first segment is established by an intermediate piece including two pin bearings, one bearing pin extending in a vertical direction while the other bearing pin extends in a horizontal direction and the one pin bearing supporting the intermediate piece at the carrier structure means of the first segment while the other pin bearing supports the pivot arm means; and a carriage means traversing the glide track arrangement means, the other end of the pivot arm means being in supportive suspension from the carriage means for tilting the carriage means in any desired direction with respect to the pivot arm means.
Claim 3
Dependent Claim
23 words
The folding gate as claimed in claim 1, wherein the panel of the second segment is movably suspended from the pivot arm means.
Claim 4
Dependent Claim
73 words
The folding gate as claimed in claim 1 or 2 wherein the carrier structure of the first segment comprises a rigid L-shaped frame one leg of which extends vertically along or parallel to the axis of the gate wing bearing and the other leg of which extends horizontally along the upper edge of the first segment and is movably connected at its free end to the one end of the pivot arm means.
Claim 5
Dependent Claim
31 words
The folding gate as claimed in claim 1, wherein the pin bearing which includes the vertical bearing pin connects the carrier structure means of the first segment to the intermediate piece.
Claim 6
Dependent Claim
35 words
The folding gate as claimed in claim 1 wherein the pivot arm carrier is suspended from the carriage means by means of a bar on which the first guide roller means is supported for rotation.
Claim 7
Dependent Claim
21 words
The folding gate as claimed in one of claims 1 or 2 wherein the panel is a web of flexible material.
Claim 8
Dependent Claim
22 words
The folding gate as claimed in one of claims 1 or 2 wherein the panel consists of at least one rigid board.
Claim 9
Dependent Claim
30 words
The folding gate as claimed in claim 7 wherein the panel consists of two rigid boards disposed one above the other, the lower board being suspended from the upper one.
Claim 10
Dependent Claim
31 words
The folding gate as claimed in claim 8 wherein individual or all gaps between adjacent boards of the segments and between boards and an adjacent carrier structure are closed by weatherstripping.
Claim 11
Dependent Claim
59 words
The folding gate according to claim 1 wherein the carriage means guides the first guide roller means in the glide track arrangement means; and a plurality of second guide roller means, guided horizontally by the glide track arrangement means, the second guide roller means being connected in an articulated manner to the other end of the pivot arm means.
Claim 12
Dependent Claim
18 words
The folding gate according to claim 1 wherein the first and second segments are in partial overlapping relationship.
Claim 13
Dependent Claim
19 words
The folding gate according to claim 1 wherein the first and second segments are interconnected by an elastic strap.
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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) | 1989-03-10 | 1989-09-09 | 1990-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-10 | 1993-09-09 | 1994-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-10 | 1997-09-09 | 1998-03-11 | $7700.00 | Window Closed / Lapsed |