GB2124290A - Apparatus for securing flexible sheet material - Google Patents

Apparatus for securing flexible sheet material Download PDF

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Publication number
GB2124290A
GB2124290A GB08221196A GB8221196A GB2124290A GB 2124290 A GB2124290 A GB 2124290A GB 08221196 A GB08221196 A GB 08221196A GB 8221196 A GB8221196 A GB 8221196A GB 2124290 A GB2124290 A GB 2124290A
Authority
GB
United Kingdom
Prior art keywords
walls
sheet
level
securing
edge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB08221196A
Inventor
Raymond Broadhurst
Keith Sylvester Blondel
Richard Charles Revell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Clovis Lande
Original Assignee
Clovis Lande
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Clovis Lande filed Critical Clovis Lande
Priority to GB08221196A priority Critical patent/GB2124290A/en
Priority to PT7572182A priority patent/PT75721B/en
Publication of GB2124290A publication Critical patent/GB2124290A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/06—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips
    • F16B5/0692—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining flexible sheets to other sheets or plates or to strips or bars

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Buffer Packaging (AREA)

Abstract

Apparatus for securing a sheet (20) of flexible material comprises a channel (10) having a base (11) and walls (12 and 13) which are spaced apart less than the width of a securing member (15) except at the level of recesses (16 and 17). The member (15) is a force fit in the recesses and secures the sheet (20). <IMAGE>

Description

SPECIFICATION Apparatus for securing flexible sheet material This invention is concerned with apparatus for securing in position a sheet of flexible material such as polythene.
Large sheets of polythene are used extensively as temporary covers and it has heretofore proved difficult to "tie down" the edges of the sheet satisfactorily.
It is an object of the present invention to provide improved apparatus for tying down the edges of flexible sheet material.
The present invention is apparatus for securing flexible sheet material, the apparatus comprising a channel having a base and spaced upstanding walls and a member whose width is greater than its thickness, said walls being generally spaced apart by a distance intermediate said width and said thickness but being recessed at one level such that the member can bridge the walls at that level.
Preferably the walls are spaced apart less above said level than below.
The member may comprise a flat bar having rounded edges.
The walls may be provided with respective rounded recesses at that level.
An embodiment of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which: Fig. 1 is a cross-section through apparatus according to the present invention before a sheet of flexible material is secured; and Fig. 2 is a cross-section through the apparatus of Fig. 1 with a sheet of flexible material secured in position.
As shown in the drawings, apparatus for securing a sheet of flexible material comprises a channel member 10 having a base 11 and two upstanding walls 12 and 13 which are, in this embodiment, mirror images of each other, and a securing member 1 5 whose width is greater than its thickness and which, in this embodiment, is a flat bar having rounded edges.
The spacing between the walls 12 and 13 is generally less than the width of the member 1 5 though greater than its thickness except at a level near the top of the walls where rounded recesses 16 and 1 7 are provided in the respective walls 12 and 13 and the distance between the walls is increased to that of the width of the member 1 5.
Above the level of the recesses the wall spacing is reduced by smooth bulbous tops provided on the walls 12 and 13.
With this wall formation, a sheet 20 of flexible material can be simply laid across the tops of the walls and the member 1 5 dropped between the walls, as shown in Fig. 1, taking the sheet 20 with it. Either edge of the member 1 5 can then be fitted into the recess 16 or 1 7 in the adjacent wall and tension on the sheet at the other side will lift the other edge of the member into its recess to achieve the situation shown in Fig. 2. It should be noted that the movement of the member 1 5 while the second edge is being located in its groove is a pivoting movement in the recess in which the first edge is located, and the second edge has to force its way into its recess past the lower edge of the recess.
In the position of Fig. 2 it can be seen that the sheet is securely trapped between the member 15 and the walls and that any tension on the sheet merely serves to increase the forces securing the sheet. To free the sheet it is only necessary to push down one edge of the member 1 5 and thus return to the position of Fig. 1.
Claims
1. Apparatus for securing flexible sheet material, the apparatus comprising a channel having a base and spaced upstanding walls and a member whose width is greater than its thickness, said walls being generally spaced apart by a distance intermediate said width and said thickness but being recessed at one level such that the member can bridge the walls at that level.
2. Apparatus as claimed in claim 1, in which the wails are spaced apart less above said level than below.
3. Apparatus as claimed in claim 1 or claim 2, in which the member comprises a flat bar having rounded edges.
4. Apparatus as claimed in claim 3, in which the walls are provided with rounded recesses at that level.
5. Apparatus for securing flexible sheet material substantially as hereinbefore described with reference to, and as shown in, the accompanying drawings.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (5)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Apparatus for securing flexible sheet material This invention is concerned with apparatus for securing in position a sheet of flexible material such as polythene. Large sheets of polythene are used extensively as temporary covers and it has heretofore proved difficult to "tie down" the edges of the sheet satisfactorily. It is an object of the present invention to provide improved apparatus for tying down the edges of flexible sheet material. The present invention is apparatus for securing flexible sheet material, the apparatus comprising a channel having a base and spaced upstanding walls and a member whose width is greater than its thickness, said walls being generally spaced apart by a distance intermediate said width and said thickness but being recessed at one level such that the member can bridge the walls at that level. Preferably the walls are spaced apart less above said level than below. The member may comprise a flat bar having rounded edges. The walls may be provided with respective rounded recesses at that level. An embodiment of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which: Fig. 1 is a cross-section through apparatus according to the present invention before a sheet of flexible material is secured; and Fig. 2 is a cross-section through the apparatus of Fig. 1 with a sheet of flexible material secured in position. As shown in the drawings, apparatus for securing a sheet of flexible material comprises a channel member 10 having a base 11 and two upstanding walls 12 and 13 which are, in this embodiment, mirror images of each other, and a securing member 1 5 whose width is greater than its thickness and which, in this embodiment, is a flat bar having rounded edges. The spacing between the walls 12 and 13 is generally less than the width of the member 1 5 though greater than its thickness except at a level near the top of the walls where rounded recesses 16 and 1 7 are provided in the respective walls 12 and 13 and the distance between the walls is increased to that of the width of the member 1 5. Above the level of the recesses the wall spacing is reduced by smooth bulbous tops provided on the walls 12 and 13. With this wall formation, a sheet 20 of flexible material can be simply laid across the tops of the walls and the member 1 5 dropped between the walls, as shown in Fig. 1, taking the sheet 20 with it. Either edge of the member 1 5 can then be fitted into the recess 16 or 1 7 in the adjacent wall and tension on the sheet at the other side will lift the other edge of the member into its recess to achieve the situation shown in Fig. 2. It should be noted that the movement of the member 1 5 while the second edge is being located in its groove is a pivoting movement in the recess in which the first edge is located, and the second edge has to force its way into its recess past the lower edge of the recess. In the position of Fig. 2 it can be seen that the sheet is securely trapped between the member 15 and the walls and that any tension on the sheet merely serves to increase the forces securing the sheet. To free the sheet it is only necessary to push down one edge of the member 1 5 and thus return to the position of Fig. 1. Claims
1. Apparatus for securing flexible sheet material, the apparatus comprising a channel having a base and spaced upstanding walls and a member whose width is greater than its thickness, said walls being generally spaced apart by a distance intermediate said width and said thickness but being recessed at one level such that the member can bridge the walls at that level.
2. Apparatus as claimed in claim 1, in which the wails are spaced apart less above said level than below.
3. Apparatus as claimed in claim 1 or claim 2, in which the member comprises a flat bar having rounded edges.
4. Apparatus as claimed in claim 3, in which the walls are provided with rounded recesses at that level.
5. Apparatus for securing flexible sheet material substantially as hereinbefore described with reference to, and as shown in, the accompanying drawings.
GB08221196A 1982-07-22 1982-07-22 Apparatus for securing flexible sheet material Withdrawn GB2124290A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB08221196A GB2124290A (en) 1982-07-22 1982-07-22 Apparatus for securing flexible sheet material
PT7572182A PT75721B (en) 1982-07-22 1982-10-22 Apparatus for securing flexible sheet material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08221196A GB2124290A (en) 1982-07-22 1982-07-22 Apparatus for securing flexible sheet material

Publications (1)

Publication Number Publication Date
GB2124290A true GB2124290A (en) 1984-02-15

Family

ID=10531831

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08221196A Withdrawn GB2124290A (en) 1982-07-22 1982-07-22 Apparatus for securing flexible sheet material

Country Status (2)

Country Link
GB (1) GB2124290A (en)
PT (1) PT75721B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995008258A1 (en) * 1993-09-21 1995-03-30 Toth Karoly Modular quick fastening system, in particular for mounting plastic foils on hot greenhouses
FR2720793A1 (en) * 1994-06-07 1995-12-08 Jean Fantini Profiles for fixing supple sheet material or film
GB2414507A (en) * 2004-05-28 2005-11-30 Central Metals & Fixings Ltd Tube clip with rope hole

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1409061A (en) * 1972-03-01 1975-10-08 Clovis Lande Associates Ltd Sheet securing apparatus
GB1469132A (en) * 1973-07-16 1977-03-30 Plant Products Co Ltd Apparatus for holding flexible sheet material
GB1586773A (en) * 1978-01-03 1981-03-25 Richardson Westgarth & Co Ltd Sheet securing devices

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1409061A (en) * 1972-03-01 1975-10-08 Clovis Lande Associates Ltd Sheet securing apparatus
GB1469132A (en) * 1973-07-16 1977-03-30 Plant Products Co Ltd Apparatus for holding flexible sheet material
GB1586773A (en) * 1978-01-03 1981-03-25 Richardson Westgarth & Co Ltd Sheet securing devices

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995008258A1 (en) * 1993-09-21 1995-03-30 Toth Karoly Modular quick fastening system, in particular for mounting plastic foils on hot greenhouses
FR2720793A1 (en) * 1994-06-07 1995-12-08 Jean Fantini Profiles for fixing supple sheet material or film
GB2414507A (en) * 2004-05-28 2005-11-30 Central Metals & Fixings Ltd Tube clip with rope hole

Also Published As

Publication number Publication date
PT75721B (en) 1984-12-05
PT75721A (en) 1982-11-01

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)