WO2009047814A1 - Highly flexible cable clamp - Google Patents

Highly flexible cable clamp Download PDF

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Publication number
WO2009047814A1
WO2009047814A1 PCT/IT2007/000713 IT2007000713W WO2009047814A1 WO 2009047814 A1 WO2009047814 A1 WO 2009047814A1 IT 2007000713 W IT2007000713 W IT 2007000713W WO 2009047814 A1 WO2009047814 A1 WO 2009047814A1
Authority
WO
WIPO (PCT)
Prior art keywords
self
terminal end
locking clamp
head
teeth
Prior art date
Application number
PCT/IT2007/000713
Other languages
French (fr)
Inventor
Federico Griggio
Stefano Griggio
Original Assignee
Sapiselco S.R.L.
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 Sapiselco S.R.L. filed Critical Sapiselco S.R.L.
Priority to EP07827764A priority Critical patent/EP2195251A1/en
Priority to CN200780100876A priority patent/CN101815655A/en
Priority to US12/679,273 priority patent/US20100205786A1/en
Priority to PCT/IT2007/000713 priority patent/WO2009047814A1/en
Publication of WO2009047814A1 publication Critical patent/WO2009047814A1/en

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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/22—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals
    • F16L3/23—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals for a bundle of pipes or a plurality of pipes placed side by side in contact with each other
    • F16L3/233—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals for a bundle of pipes or a plurality of pipes placed side by side in contact with each other by means of a flexible band
    • F16L3/2332—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals for a bundle of pipes or a plurality of pipes placed side by side in contact with each other by means of a flexible band having a single plastic locking barb
    • F16L3/2334—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals for a bundle of pipes or a plurality of pipes placed side by side in contact with each other by means of a flexible band having a single plastic locking barb the barb having a plurality of serrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D63/00—Flexible elongated elements, e.g. straps, for bundling or supporting articles
    • B65D63/10—Non-metallic straps, tapes, or bands; Filamentary elements, e.g. strings, threads or wires; Joints between ends thereof
    • B65D63/1018—Joints produced by application of integral securing members, e.g. buckles, wedges, tongue and slot, locking head and teeth or the like
    • B65D63/1027—Joints produced by application of integral securing members, e.g. buckles, wedges, tongue and slot, locking head and teeth or the like the integral securing member being formed as a female and male locking member, e.g. locking head and locking teeth, or the like
    • B65D63/1063—Joints produced by application of integral securing members, e.g. buckles, wedges, tongue and slot, locking head and teeth or the like the integral securing member being formed as a female and male locking member, e.g. locking head and locking teeth, or the like the female locking member being provided with at least one plastic barb
    • B65D63/1072—Joints produced by application of integral securing members, e.g. buckles, wedges, tongue and slot, locking head and teeth or the like the integral securing member being formed as a female and male locking member, e.g. locking head and locking teeth, or the like the female locking member being provided with at least one plastic barb the barb having a plurality of serrations
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
    • F16L3/12—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing comprising a member substantially surrounding the pipe, cable or protective tubing
    • F16L3/137—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing comprising a member substantially surrounding the pipe, cable or protective tubing and consisting of a flexible band
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/30—Installations of cables or lines on walls, floors or ceilings
    • H02G3/32—Installations of cables or lines on walls, floors or ceilings using mounting clamps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/14—Bale and package ties, hose clamps
    • Y10T24/1412—Bale and package ties, hose clamps with tighteners
    • Y10T24/1418—Self-locking [dead center or snap action]

Definitions

  • the present invention concerns the sector of fastening devices and in particular it concerns a self-locking clamp.
  • Self-locking clamps comprise a head and a terminal end suited to be inserted in said head in such a way as to form a loop.
  • Said self- locking clamps arc mainly used to fix cables or pipes.
  • the head of the self- locking clamp comprises a substantially prismatic body, preferably cylindrical or parallelepiped in shape, an axial opening whose si/c is sufficient to allow the terminal end to fit therein, said axial opening housing an clastic tooth.
  • the terminal end of said known self-locking clamp substantially comprises a linear element with U-shaped section, connected to the head at one extremity, and one rack, so that the sides of all the teeth of the clamp arc integral with the shoulders or sides of said linear element with U-shaped section.
  • Said linear clement comprises, therefore, a substantially fiat base and two lateral raised edges orthogonal to said base.
  • the rack is positioned in the air space created between the two lateral edges.
  • the coupling of the head with the terminal end is obtained by pushing the clastic tooth of said head against the rack on the terminal end.
  • fhc materials of which self-locking clamps arc generally made arc polyamidc, plastic materials or, in any case, materials with a certain degree of flexibility. Notwithstanding the variety of self-locking clamps available on the market, all of the solutions pose the same drawback, in fact the rigidity of these self- locking clamps makes it impossible to apply them to objects whose diameter is too small, for example for closing sacks or fastening cables with reduced diameter.
  • the new self-locking clamp comprises, as to its main parts, a head and a terminal end suited to be inserted in said head in such a way as to form a loop that can only be closed.
  • Said head of the new self-locking clamp comprises a substantially prismatic body, preferably cylindrical or parallelepiped in shape, an axial opening whose size is sufficient to allow the terminal end of the new self-locking clamp to fit therein, said axial opening housing one or more clastic teeth.
  • Said terminal end of the new self-locking clamp comprises a linear clement with substantially rectangular section with one extremity connected to the head, and one rack, positioned on top of said linear clement, said section of said terminal end of the self-locking clamp having a reduced moment of inertia.
  • the coupling of the head with the free extremity of the terminal end is obtained by pushing the clastic tooth of said head against the rack on the terminal end.
  • Self-locking clamp with head and terminal end comprising a linear clement, with one extremity connected to said head and with rack on top for coupling with the tooth provided on the head, and wherein the sides of the teeth of said rack arc free so that, in each cross section of said terminal end, the thickness of said linear element useful for bending is less than the overall height of said terminal end in the same section.
  • Figure ⁇ ' shows a cross section of the terminal end of a cable clamp of known type
  • Figure ⁇ " shows a cross section of the same terminal end of a cable clamp of known type, with U-shapcd section, comprising a substantially rectangular base (M) and two upper side shoulders (P) rigidly integral with the teeth (N) positioned above said base (M).
  • Figure I a is a top view of the new self-locking clamp
  • Figure I b shows the cross section of the terminal end of the self-locking clamp
  • Figure 1 c shows a variant of the same section.
  • Figure 2 shows an axonomctric view of the new self-locking clamp.
  • Figure 3 instead, shows a longitudinal section of the new self-locking clamp with a detail of the teeth in evidence.
  • the new self-locking clamp (F") comprises a drilled head (T) and a terminal end (C) suited to be fitted in said head (T).
  • Said head (T) of said self-locking clamp (F) comprises, as shown in Figure 3, a substantially prismatic body (R), in this case cylindrical in shape, an axial opening ( ⁇ ) whose size is sufficient to allow said terminal end (C) of said self-locking clamp (F) to fit therein, said axial opening ( ⁇ ) housing one or more clastic teeth (D).
  • the terminal end (C) of said self-locking clamp (F) comprises a linear clement (L) with substantially rectangular section and a given thickness (s) with one extremity connected to the head (T), and one rack, positioned above the linear clement (L) and equipped with teeth (N) with a given height (k).
  • the overall height (h) of said terminal end (C) is equal to the sum of the thickness (s) of said linear clement (L) and the height (k) of each individual tooth (N).
  • the useful thickness for bending is the height or thickness (s) of the terminal end (C) involved in the bending action when the loop of said self- locking clamp is closed.
  • Said rack comprises a plurality of teeth (N) with a given height (k) having, in this case, a saw-tccth profile, and wherein the sides of said teeth (N) arc free and not constrained to or integral with any lateral ribs or shoulders.
  • Said teeth (N) arc slightly spaced from each other, that is, between the orthogonal surface (ON) of said tooth (N) and the inclined surface (IN) of the successive tooth (N) there is a small substantially flat surface (PN); the space created between one tooth and the successive one allows the coupling of the clastic tooth (D) during the closing operation.
  • said teeth with a given height (k) having, in this case, a saw-tccth profile, and wherein the sides of said teeth (N) arc free and not constrained to or integral with any lateral ribs or shoulders.
  • Said teeth (N) arc slightly spaced from each other, that is, between the orthogonal surface (ON) of said tooth (N) and the inclined

Abstract

The invention is a new self-locking clamp with a head (T) and a terminal end (C) comprising a linear element (L) with substantially rectangular section having one extremity connected to said head (T) and one rack provided with teeth (N), and wherein the sides of said teeth (N) are free and not constrained to or integral with any lateral ribs or shoulders. In particular, in each cross section of said terminal end (C) the thickness of said linear element (L) useful for bending is less than the overall height (h) of said terminal end (C).

Description

HIGHLY FLEXIBLE CABLE CLAMP
DESCRIPTION
The present invention concerns the sector of fastening devices and in particular it concerns a self-locking clamp.
Self-locking clamps are known that comprise a head and a terminal end suited to be inserted in said head in such a way as to form a loop. Said self- locking clamps arc mainly used to fix cables or pipes. The head of the self- locking clamp comprises a substantially prismatic body, preferably cylindrical or parallelepiped in shape, an axial opening whose si/c is sufficient to allow the terminal end to fit therein, said axial opening housing an clastic tooth.
The terminal end of said known self-locking clamp substantially comprises a linear element with U-shaped section, connected to the head at one extremity, and one rack, so that the sides of all the teeth of the clamp arc integral with the shoulders or sides of said linear element with U-shaped section.
Said linear clement comprises, therefore, a substantially fiat base and two lateral raised edges orthogonal to said base. The rack is positioned in the air space created between the two lateral edges.
The coupling of the head with the terminal end is obtained by pushing the clastic tooth of said head against the rack on the terminal end. fhc materials of which self-locking clamps arc generally made arc polyamidc, plastic materials or, in any case, materials with a certain degree of flexibility. Notwithstanding the variety of self-locking clamps available on the market, all of the solutions pose the same drawback, in fact the rigidity of these self- locking clamps makes it impossible to apply them to objects whose diameter is too small, for example for closing sacks or fastening cables with reduced diameter.
Furthermore, another limiting factor is the reduced resistance of the known clamps at low temperatures and/or in dry environments. To remedy all the above drawbacks a new type of highly flexible self- locking clamp has been designed and constructed. The main advantage of the new self-locking clamp lies in its increased resistance to low temperatures and in dry environments: this is due to the fact that the moment of inertia of the section of the terminal end of the new self-locking clamp is lower than that of the equivalent self-locking clamps of known type. Λ further advantage lies in that the new self-locking clamp uses less material than analogous self-locking clamps available on the market. These and other direct and complementary objects have been achieved through the construction of the new highly flexible self-locking clamp. The new self-locking clamp comprises, as to its main parts, a head and a terminal end suited to be inserted in said head in such a way as to form a loop that can only be closed.
Said head of the new self-locking clamp comprises a substantially prismatic body, preferably cylindrical or parallelepiped in shape, an axial opening whose size is sufficient to allow the terminal end of the new self-locking clamp to fit therein, said axial opening housing one or more clastic teeth. Said terminal end of the new self-locking clamp comprises a linear clement with substantially rectangular section with one extremity connected to the head, and one rack, positioned on top of said linear clement, said section of said terminal end of the self-locking clamp having a reduced moment of inertia.
The coupling of the head with the free extremity of the terminal end is obtained by pushing the clastic tooth of said head against the rack on the terminal end. Self-locking clamp with head and terminal end comprising a linear clement, with one extremity connected to said head and with rack on top for coupling with the tooth provided on the head, and wherein the sides of the teeth of said rack arc free so that, in each cross section of said terminal end, the thickness of said linear element useful for bending is less than the overall height of said terminal end in the same section. The characteristics of the new self-locking clamp will be highlighted in greater detail in the following description, with reference to the enclosed drawings, attached as examples without limitation.
Figure Λ' shows a cross section of the terminal end of a cable clamp of known type, while Figure Λ" shows a cross section of the same terminal end of a cable clamp of known type, with U-shapcd section, comprising a substantially rectangular base (M) and two upper side shoulders (P) rigidly integral with the teeth (N) positioned above said base (M). Figure I a is a top view of the new self-locking clamp, while Figure I b shows the cross section of the terminal end of the self-locking clamp, and Figure 1 c shows a variant of the same section. Figure 2 shows an axonomctric view of the new self-locking clamp. Figure 3, instead, shows a longitudinal section of the new self-locking clamp with a detail of the teeth in evidence.
With particular reference to Figure 2, the new self-locking clamp (F") comprises a drilled head (T) and a terminal end (C) suited to be fitted in said head (T).
Said head (T) of said self-locking clamp (F) comprises, as shown in Figure 3, a substantially prismatic body (R), in this case cylindrical in shape, an axial opening (Λ) whose size is sufficient to allow said terminal end (C) of said self-locking clamp (F) to fit therein, said axial opening (Λ) housing one or more clastic teeth (D).
The terminal end (C) of said self-locking clamp (F) comprises a linear clement (L) with substantially rectangular section and a given thickness (s) with one extremity connected to the head (T), and one rack, positioned above the linear clement (L) and equipped with teeth (N) with a given height (k).
The overall height (h) of said terminal end (C) is equal to the sum of the thickness (s) of said linear clement (L) and the height (k) of each individual tooth (N). The useful thickness for bending is the height or thickness (s) of the terminal end (C) involved in the bending action when the loop of said self- locking clamp is closed.
Said rack comprises a plurality of teeth (N) with a given height (k) having, in this case, a saw-tccth profile, and wherein the sides of said teeth (N) arc free and not constrained to or integral with any lateral ribs or shoulders. Said teeth (N) arc slightly spaced from each other, that is, between the orthogonal surface (ON) of said tooth (N) and the inclined surface (IN) of the successive tooth (N) there is a small substantially flat surface (PN); the space created between one tooth and the successive one allows the coupling of the clastic tooth (D) during the closing operation. Furthermore, said teeth
(N) can be as wide as or narrower than the linear clement (L). Figures I b and Ic show two possible sections of said terminal end (C) of the self-locking clamp (F): in Figure Ib the tooth (N) is as wide as the linear element (L). while in Figure I c the tooth (N") is narrower than the linear clement (L).
The coupling of the head ( T) with the free extremity of the terminal end (C) is obtained by pushing the elastic tooth (D) of said head (T) against the rack on the terminal end (D). Therefore, with reference to the above description and the attached drawings, the following claims arc expressed.

Claims

1. Self-locking clamp with a head (T) and a terminal end (C) comprising a linear clement (L) having one extremity connected to said head (T) and one rack equipped with teeth (N), characterized in that said linear clement (L) has a substantially rectangular cross section.
2. Self-locking clamp according to claim 1 , characterized in that said rack comprises a plurality of teeth (N), wherein the sides of said teeth (N) arc free and not constrained to or integral with any lateral ribs or shoulders.
3. Self-locking clamp according to claims 1 and 2, characterized in that in each cross section of said terminal end (C) the thickness (s) of said linear element (L) useful for bending is less than the overall height (h) of said terminal end (C).
4. Self-locking clamp according to claims 1, 2 and 3, characterized in that said overall height (h) of said terminal end (C) is equal to the sum of the thickness (s) of said linear clement (L) and the height (k) of each individual tooth (N).
5. Self-locking clamp according to claims 1, 2, 3 and 4, characterized in that the width of the teeth (N) of said rack is equal to the width of said linear clement (L).
6. Self-locking clamp according to claims 1 , 2, 3, 4 and 5, characterized in that the width of the teeth (N) of said rack is less than the width of said linear clement (L).
7. Self-locking clamp according to claims 1, 2, 3, 4, 5 and 6, characterized in that said head (T) is substantially cylindrical in shape.
PCT/IT2007/000713 2007-10-11 2007-10-11 Highly flexible cable clamp WO2009047814A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP07827764A EP2195251A1 (en) 2007-10-11 2007-10-11 Highly flexible cable clamp
CN200780100876A CN101815655A (en) 2007-10-11 2007-10-11 Highly flexible cable clamp
US12/679,273 US20100205786A1 (en) 2007-10-11 2007-10-11 Highly flexible cable clamp
PCT/IT2007/000713 WO2009047814A1 (en) 2007-10-11 2007-10-11 Highly flexible cable clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2007/000713 WO2009047814A1 (en) 2007-10-11 2007-10-11 Highly flexible cable clamp

Publications (1)

Publication Number Publication Date
WO2009047814A1 true WO2009047814A1 (en) 2009-04-16

Family

ID=39092003

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2007/000713 WO2009047814A1 (en) 2007-10-11 2007-10-11 Highly flexible cable clamp

Country Status (4)

Country Link
US (1) US20100205786A1 (en)
EP (1) EP2195251A1 (en)
CN (1) CN101815655A (en)
WO (1) WO2009047814A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012131393A3 (en) * 2011-04-01 2013-08-15 Triton Plc Electric water heaters
EP2815990B1 (en) * 2013-06-19 2016-10-26 Sapiselco S.r.l. Highly flexible cable tie

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973293A (en) * 1976-02-02 1976-08-10 Thomas & Betts Corporation Bundling strap
US4502187A (en) * 1981-05-11 1985-03-05 Kitagawa Industries Co., Ltd. Bands for clamping

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2979794A (en) * 1956-09-24 1961-04-18 Bartolo Francis De Wire or cable bundle tie
US3224056A (en) * 1963-11-29 1965-12-21 Park Plastics Co Inc Strap seal
US6807714B2 (en) * 2002-03-04 2004-10-26 Panduit Corp. Cable tie having stepped down strap body teeth

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973293A (en) * 1976-02-02 1976-08-10 Thomas & Betts Corporation Bundling strap
US4502187A (en) * 1981-05-11 1985-03-05 Kitagawa Industries Co., Ltd. Bands for clamping

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012131393A3 (en) * 2011-04-01 2013-08-15 Triton Plc Electric water heaters
EP2815990B1 (en) * 2013-06-19 2016-10-26 Sapiselco S.r.l. Highly flexible cable tie

Also Published As

Publication number Publication date
CN101815655A (en) 2010-08-25
EP2195251A1 (en) 2010-06-16
US20100205786A1 (en) 2010-08-19

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