GB1574982A - Cable or pipe clamp - Google Patents

Cable or pipe clamp Download PDF

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Publication number
GB1574982A
GB1574982A GB25631/77A GB2563177A GB1574982A GB 1574982 A GB1574982 A GB 1574982A GB 25631/77 A GB25631/77 A GB 25631/77A GB 2563177 A GB2563177 A GB 2563177A GB 1574982 A GB1574982 A GB 1574982A
Authority
GB
United Kingdom
Prior art keywords
clamp
screwnail
clamp part
sleeve
shoulders
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.)
Expired
Application number
GB25631/77A
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.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Publication of GB1574982A publication Critical patent/GB1574982A/en
Expired legal-status Critical Current

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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
    • F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
    • F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
    • F16L3/1091—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing with two members, the two members being fixed to each other with fastening members on each side
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Supports For Pipes And Cables (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Clamps And Clips (AREA)

Abstract

The two-part cable or pipe clamp is composed of a clamp lower part (10), provided for fastening on the material of the underlying surface, and of a clamp upper part (20), which can be connected to the clamp lower part by means of a fastening element (30) designed as a screw nail. The screw nail with thread turns (31) over part of its length permits simple mounting by driving in and can be screwed out again in order to release the connection. Sleeve-like attachments (23) on the clamp upper part for receiving the screw nail prevent damage to the clamp lower part and thus permit the connection to be released a number of times. <IMAGE>

Description

(54) CABLE OR PIPE CLAMP (71) We, HILTI AKTENGESELLSCHAFT, a Corporation organised and existing under the laws of the Principality of Liechtenstein, of Schaan, Liechtenstein, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: This invention relates to a two-part cable or pipe clamp comprising a first clamp part which is intended for fastening to a substrate and a second clamp part which is engageable with the first clamp part, the two clamp parts serving together to embrace a cable or pipe, and which is also connectable thereto by means of a connection element.
Already known, for the laying of cables or pipes, are two-part clamps in which the lower clamp part is fastened on a substrate and, after insertion of the pipe or cable, the upper clamp is connected to the lower part with the aid of screws. However, these clamps have the substantial disadvantage that the time involved in tightening the screws, when installing the clamps, is considerable. The dismantling of the cables or pipes, after they have been installed, is indeed possible, but here too the time involved in releasing the screws is considerable.
In addition to these clamps in which the parts are held together with the aid of screws, other versions are also known in which the connection of the upper clamp part to the lower clamp part is effected with the aid of detent toothings. A reduction of the mounting time can indeed be achieved with these clamps, but the subsequent releasing of cable or pipes, once they have been fastened, is possible only with considerable expenditure of time, and in most instances only with the aid of special tools. Moreover, connections employing detent toothings are usually not able to absorb fairly large forces.
The problem underlying the invention is to provide a cable or pipe clamp which comprises a first clamp part and a second clamp part connectable together by means of a connection element, which can be installed rapidly and reliably and which can, after installation, be released again in a simple manner.
In accordance with the invention, this problem is solved in that the connection element is in the form of a screwnail which extends through one clamp part and interengages with the other clamp part. After the two clamp parts have been assembled together so that they embrace the cable or pipe, they can be fixed in position within the shortest time by impacting the screwnail in with a small number of hammer blows.
The two clamp parts can be separated again, by removing the screwnail.
To facilitate introduction of the screwnail into the two clamp parts, it is advantageous for the first clamp part and the second clamp part to each have two apertures which can be brought into coincidence with each other.
This makes premounting possible. In the case of a clamp which has to be released from time to-time, the introduction of the screwnail is thereby considerably facilitated.
In order to avoid the risk of damaging the first clamp part, which is generally more expensive and more difficult to replace, it is advantageous if the second clamp part has on its inside, in extension of the apertures, sleeve-like shoulders both for engagement into the apertures on the first clamp part and for the reception of the screwnail. The screwnail is thus guided over its entire length in the second clamp part and does not come directly into contact with the first clamp part. The sleeve-like shoulders on the second clamp part act in the manner of an expansible dowel, the screwnail itself representing the expansion element.
In order to avoid premature expansion of the sleeve-like shoulders upon the joining together of the two clamp parts, whereby relative displacement of the two clamp parts would be made impossible, it is advantageous for the sleeve-like shoulders to taper conically towards one end. This feature furthermore.has the advantage that the resistance arising upon driving-in of the screwnail, increases gradually. The conical outside shape facilitates the joining-together of the two clamp parts.
So that the sleeve-like shoulders can widen accordingly in the expansion region, it is advantageous for the sleeve-like shoulders to have at least one longitudinal slot. If there are fairly large differences in size between the bore in the first clamp part and the sleeve-like shoulder in the second clamp part, destruction of the sleeve-like shoulder during its expansion is prevented.
Cable or pipe clamps very often have to be mounted in locations which are poorly access ible or inadequately illuminated. In order to facilitate the mounting, it is therefore advan tageous for the sleeve-like shoulders to have, at their tapered end, a centering shoulder, or adjoint-piece. Such a centering shoulder can, furthermore, serve to restrain the striking pin in a specific position prior to knocking-in.
To provide for the possibility of releasing the second clamp from the first clamp part, it is advantageous for the screwnail to be pro vided, at least over a part of its length, with thread courses. The second clamp part can then be released from the first clamp part by simply unscrewing the screwnail.
In order to make knocking-in of the screw nail as simple as possible, as well as to ensure reliable holding of the screwnail, it is advan tageous for the profile or section of the thread courses to be of sawtooth configuration, with flatter thread flanks directed towards the tip of the screwnail and steep thread flanks averted from the tip.
For releasing the screwnail it is advantageous for it to have a head which is provided with engagement means for a screwdriver to engage therewith. During knocking-in, the head of the screwnail serves as a stop. In order to prevent damage to the engagement means when the screwnail is knocked in, the head can be pro vided with a cross-slot or with a hexagonal recess instead of with a single slot.
The invention will be described further, by way of example, with reference to the accom panying drawing in which the single figure is a perspective view illustrating a two-part cable or pipe clamp constructed in accord ance with the invention, part of the clamp having been cut-away to enable its construc tion fully to be appreciated.
The illustrated clamp comprises a first clamp part designated as a whole by the numeral 10 and a second clamp part desig nated as a whole by the numeral 20. The first clamp part 10 and second clamp part 20 'have respective recesses 11-and 21 which together define a reception aperture for the reception of a pipe or cable (not shown) these recesses being, for instance, semi-circular. For securement to a substrate (not shown) the first clamp part 10 has an aperture 13 for the reception of a fastener (not shown) such as a bolt or screw. The second clamp part 20 and the first clamp part 10 each have two apertures 12, 22 respectively which can be brought into alignment or register with each other. The second clamp part 20 has, on its inside, in extension of its apertures 22, each of which has a countersink 27, sleeve-like shoulders or adjoint-pieces 23. These shoulders 23 serve for engagement into the respective apertures 12 on the first clamp part 10, and for the reception of respective screwnails designated as a whole by the numerals 30. The sleevelike shoulders 23 taper conically towards end 24. Such a construction of the sleeve-like shoulders 23 serves, on the one hand, to hold the screwnail 30 in an initially-inserted position as shown and for facilitating the joiningtogether of the two clamp parts 10, 20. Upon knocking-in of the screwnail 30, the sleevelike shoulders 23 act in the manner of an expansible dowel, with the screwnail 30 serving as an expansion element of such dowel. In order to facilitate the widening of the shoulders 23, these are provided at least with one longitudinal slot 25. The sleeve-like shoulders 23 have, at end 24, a centering tip 26.
Each screwnail 30 is provided, over a part of its length, with thread courses 31. The profile of the thread courses 31 is of sawtooth configuration. This facilitates knocking-in of the screwnail 30 and achieves a reliable hold of the same in the sleeve-like shoulder 23. The screwnail 30 has, furthermore, a head 32 which serves as a stop upon knocking-in of the pin. For releasing the screwnail 30, for the purpose of removal of the second clamp part 20, the screwnail 30 is provided, on its head 32, with engagement means for a screwdriver in the form of a slot 33.
WHAT WE CLAIM IS: 1. A two-part cable or pipe clamp comprising a first clamp part intended for fastening to a substrate and a second clamp part which is engageable with the first clamp part, the two clamp parts serving together to embrace a cable or a pipe, and being connectable together by means of a connection element, characterised in that the connection element is in the form of a screwnail which extends through one clamp part and interengages with the other clamp part.
2. A clamp as claimed in claim 1, characterised in that the first clamp part and the second clamp part each have two apertures, so positioned that the apertures of the first clamp part can be brought into register with the apertures of the second clamp part.
3. A clamp as claimed in claim 2, characterised in that the second clamp part has on its inside, in extension of each of its apertures, sleeve-like shoulders for engagement into the apertures on the first clamp part and for the reception of the screwnail.
4. A clamp as claimed in claim 3, characterised in that each sleeve-like shoulder tapers conically towards one end.
5. A clamp as claimed in claim 3 or 4, characterised in that each sleeve-like shoulder has at least one longitudinal slot.
6. A clamp as claimed in claim 3,4 or 5,
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (10)

**WARNING** start of CLMS field may overlap end of DESC **. advantageous for the sleeve-like shoulders to have at least one longitudinal slot. If there are fairly large differences in size between the bore in the first clamp part and the sleeve-like shoulder in the second clamp part, destruction of the sleeve-like shoulder during its expansion is prevented. Cable or pipe clamps very often have to be mounted in locations which are poorly access ible or inadequately illuminated. In order to facilitate the mounting, it is therefore advan tageous for the sleeve-like shoulders to have, at their tapered end, a centering shoulder, or adjoint-piece. Such a centering shoulder can, furthermore, serve to restrain the striking pin in a specific position prior to knocking-in. To provide for the possibility of releasing the second clamp from the first clamp part, it is advantageous for the screwnail to be pro vided, at least over a part of its length, with thread courses. The second clamp part can then be released from the first clamp part by simply unscrewing the screwnail. In order to make knocking-in of the screw nail as simple as possible, as well as to ensure reliable holding of the screwnail, it is advan tageous for the profile or section of the thread courses to be of sawtooth configuration, with flatter thread flanks directed towards the tip of the screwnail and steep thread flanks averted from the tip. For releasing the screwnail it is advantageous for it to have a head which is provided with engagement means for a screwdriver to engage therewith. During knocking-in, the head of the screwnail serves as a stop. In order to prevent damage to the engagement means when the screwnail is knocked in, the head can be pro vided with a cross-slot or with a hexagonal recess instead of with a single slot. The invention will be described further, by way of example, with reference to the accom panying drawing in which the single figure is a perspective view illustrating a two-part cable or pipe clamp constructed in accord ance with the invention, part of the clamp having been cut-away to enable its construc tion fully to be appreciated. The illustrated clamp comprises a first clamp part designated as a whole by the numeral 10 and a second clamp part desig nated as a whole by the numeral 20. The first clamp part 10 and second clamp part 20 'have respective recesses 11-and 21 which together define a reception aperture for the reception of a pipe or cable (not shown) these recesses being, for instance, semi-circular. For securement to a substrate (not shown) the first clamp part 10 has an aperture 13 for the reception of a fastener (not shown) such as a bolt or screw. The second clamp part 20 and the first clamp part 10 each have two apertures 12, 22 respectively which can be brought into alignment or register with each other. The second clamp part 20 has, on its inside, in extension of its apertures 22, each of which has a countersink 27, sleeve-like shoulders or adjoint-pieces 23. These shoulders 23 serve for engagement into the respective apertures 12 on the first clamp part 10, and for the reception of respective screwnails designated as a whole by the numerals 30. The sleevelike shoulders 23 taper conically towards end 24. Such a construction of the sleeve-like shoulders 23 serves, on the one hand, to hold the screwnail 30 in an initially-inserted position as shown and for facilitating the joiningtogether of the two clamp parts 10, 20. Upon knocking-in of the screwnail 30, the sleevelike shoulders 23 act in the manner of an expansible dowel, with the screwnail 30 serving as an expansion element of such dowel. In order to facilitate the widening of the shoulders 23, these are provided at least with one longitudinal slot 25. The sleeve-like shoulders 23 have, at end 24, a centering tip 26. Each screwnail 30 is provided, over a part of its length, with thread courses 31. The profile of the thread courses 31 is of sawtooth configuration. This facilitates knocking-in of the screwnail 30 and achieves a reliable hold of the same in the sleeve-like shoulder 23. The screwnail 30 has, furthermore, a head 32 which serves as a stop upon knocking-in of the pin. For releasing the screwnail 30, for the purpose of removal of the second clamp part 20, the screwnail 30 is provided, on its head 32, with engagement means for a screwdriver in the form of a slot 33. WHAT WE CLAIM IS:
1. A two-part cable or pipe clamp comprising a first clamp part intended for fastening to a substrate and a second clamp part which is engageable with the first clamp part, the two clamp parts serving together to embrace a cable or a pipe, and being connectable together by means of a connection element, characterised in that the connection element is in the form of a screwnail which extends through one clamp part and interengages with the other clamp part.
2. A clamp as claimed in claim 1, characterised in that the first clamp part and the second clamp part each have two apertures, so positioned that the apertures of the first clamp part can be brought into register with the apertures of the second clamp part.
3. A clamp as claimed in claim 2, characterised in that the second clamp part has on its inside, in extension of each of its apertures, sleeve-like shoulders for engagement into the apertures on the first clamp part and for the reception of the screwnail.
4. A clamp as claimed in claim 3, characterised in that each sleeve-like shoulder tapers conically towards one end.
5. A clamp as claimed in claim 3 or 4, characterised in that each sleeve-like shoulder has at least one longitudinal slot.
6. A clamp as claimed in claim 3,4 or 5,
characterised in that each sleeve-like shoulder has a centering tip at its tapered end.
7. A clamp as claimed in any preceding claim characterised in that the screwnail is provided with thread courses at least over a part of its length.
8. A clamp as claimed in claim 7, characterised in that the profile of the thread courses is of sawtooth configuration.
9. A clamp as claimed in any preceding claim characterised in that the screwnail has a head which is provided with engagement means for a screwdriver.
10. A cable or pipe clamp substantially as hereinbefore described with reference to and as illustrated in the accompanying drawing.
GB25631/77A 1976-07-23 1977-06-20 Cable or pipe clamp Expired GB1574982A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2633274A DE2633274C2 (en) 1976-07-23 1976-07-23 Cable or pipe clamp

Publications (1)

Publication Number Publication Date
GB1574982A true GB1574982A (en) 1980-09-17

Family

ID=5983805

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25631/77A Expired GB1574982A (en) 1976-07-23 1977-06-20 Cable or pipe clamp

Country Status (6)

Country Link
AT (1) AT364014B (en)
CA (1) CA1057724A (en)
CH (1) CH617044A5 (en)
DE (1) DE2633274C2 (en)
FR (1) FR2359299A1 (en)
GB (1) GB1574982A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8912597U1 (en) * 1989-10-24 1990-03-08 Heusinger von Waldegge, Hans-Hermann, 4800 Bielefeld Pipe clamp
DE4103541A1 (en) * 1990-02-06 1991-08-08 Stauffenberg Walter Gmbh Clamping member for pipe - has nuts engaging by stepped clamping portions in welding plate drillings
DE4003419C1 (en) * 1990-02-06 1991-04-11 Walter Stauffenberg Gmbh & Co. Kg, 5980 Werdohl, De Cleat for cable, pipe, conduit etc. - has nuts screwed onto bores of welded-n plate
DE9001296U1 (en) * 1990-02-06 1991-10-02 Walter Stauffenberg GmbH & Co. KG, 5980 Werdohl Clamp with weld plate

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972641C (en) * 1951-10-21 1959-09-24 Hoppmann & Mulsow Insulating clamp for electrical lines or cables
DE1694057U (en) * 1954-12-14 1955-03-03 Adolf Strobel INSULATION CLAMP.
DE1848264U (en) * 1961-07-19 1962-03-15 K Elektrobau Weimar Veb DISTANCE CLAMP.
DE1185265B (en) * 1962-03-08 1965-01-14 Hirschmann Radiotechnik Two-part clamp
DE1249372C2 (en) * 1964-12-07 1968-03-21 Fur Montage Technik Anstalt Methods and devices for fastening cables, pipes and the like. Like. By means of one-piece or multi-part cable clamps

Also Published As

Publication number Publication date
CA1057724A (en) 1979-07-03
DE2633274A1 (en) 1978-01-26
AT364014B (en) 1981-09-25
FR2359299B1 (en) 1981-08-28
DE2633274C2 (en) 1987-03-26
ATA526277A (en) 1981-02-15
CH617044A5 (en) 1980-04-30
FR2359299A1 (en) 1978-02-17

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920620