EP2086724A1 - Threaded rod and assembly for producing ready-to-use threaded end pieces - Google Patents

Threaded rod and assembly for producing ready-to-use threaded end pieces

Info

Publication number
EP2086724A1
EP2086724A1 EP07834624A EP07834624A EP2086724A1 EP 2086724 A1 EP2086724 A1 EP 2086724A1 EP 07834624 A EP07834624 A EP 07834624A EP 07834624 A EP07834624 A EP 07834624A EP 2086724 A1 EP2086724 A1 EP 2086724A1
Authority
EP
European Patent Office
Prior art keywords
threaded rod
break
tool
threaded
assembly
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Withdrawn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
EP07834624A
Other languages
German (de)
French (fr)
Inventor
Johannes Wilhelmus Toonssen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2086724A1 publication Critical patent/EP2086724A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B33/00—Hand tools not covered by any other group in this subclass
    • 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
    • F16B27/00—Bolts, screws, or nuts formed in integral series but easily separable, particularly for use in automatic machines

Definitions

  • the invention relates to an assembly for producing a ready-to use threaded end piece by an end user, comprising a threaded rod and a tool, in which the threaded rod is provided with external screw thread, a threaded rod which is clearly suitable for and intended for such an assembly, as well as a tool which is clearly suitable for and intended for such an assembly.
  • threaded ends are produced by taking pieces from a threaded rod in various known manners or by separating them off by, for example, grinding, cutting by means of a pair of cutting nippers, sawing or another similar technique.
  • the invention provides an assembly according to claim 1.
  • the break-off areas it is possible to produce ready-to-use threaded ends by means of the tool. It is even possible to break the threaded rod in a breaking area by means of nothing more than manual force, although this is not advisable due to the possible risks of injury.
  • the invention furthermore relates to an assembly for producing a ready-to-use threaded end piece by an end user, comprising a threaded rod and a tool, in which the threaded rod is provided with external screw thread and with break-off areas at a regular distance apart, which distances determine a basic threaded end length, and in which the tool comprises an input or a passage through which a part of the threaded rod can be inserted or fed through up to a selected break-off area, and comprises a break-off facility for exerting bending forces on the threaded rod on either side of the selected break-off area for breaking off a threaded end from the threaded rod, which threaded end has a desired number of basic threaded end lengths, preferably on the one hand bending forces acting between the selected break-off area and the subsequent break-off areas and at least one counterforce acting on the selected break-off area.
  • the invention relates to a tool therefor.
  • fig. 1 shows an assembly comprising a threaded rod and tool according to the invention
  • fig. 2a shows a part of a threaded rod according to the invention
  • fig. 2b shows a detail from fig. 2a.
  • Fig. 1 shows an assembly comprising a threaded rod 1 and tool 2 according to the invention, in which the threaded rod 1 is provided with break-off areas 4, which are situated a distance apart and in which the distance apart determines the length of the basic threaded end pieces 3, which form ready-to-use threaded ends after being broken off the threaded rod.
  • break-off areas 4 which are situated a distance apart and in which the distance apart determines the length of the basic threaded end pieces 3, which form ready-to-use threaded ends after being broken off the threaded rod.
  • threaded ends are thus produced which are an integral multiple of the length of a base piece 3.
  • a base piece will have
  • the length of the break-off area will be approximately 3-5 mm. Preferably, this length is approximately around 4 mm.
  • the tool 2 is provided with a slot 7, into which the threaded end can be inserted in a fitting manner, and is provided with a handle 8, which extends substantially radially with respect to the slot 7.
  • the operation is as follows. A user requires a certain length of threaded end. The user then counts the number of base units on the threaded rod which have to be removed from the threaded rod. The user will then insert the threaded rod into the slot 7 of the tool 2 with the end of the tool at the desired break-off surface. Upon moving the handle 8 towards the longitudinal axis of the threaded rod, the threaded rod will break at the breaking element, which is situated closest to the end of the slot 7 of the tool 2. In this case, the end user holds the threaded rod, for example in his hand, with the threaded rod protruding from his hand at the break-off area, where the breakage or fracture is to take place, and will place the tool on the threaded rod above his hand.
  • the threaded rod with two identical tools 2, in which case, for example, the one handle of the tool extends in the one direction and the other handle of the second tool extends in the other direction. Both tools will then be arranged on the threaded rod on either side of the break-off or fracture area, where the break has to be effected. It is also possible to arrange two tool parts or two tools on either side of the break-off area and to move the handles towards one another as a result of which a bending force is exerted on the threaded rod on either side of the break-off area.
  • Fig. 2a shows a threaded rod according to the invention in more detail.
  • the threaded rod comprises basic threaded end pieces, the length of which is denoted by L.
  • An end user or user of a threaded end piece can select the length of the final threaded end he requires by selecting a number of these basic threaded end pieces.
  • Break-off areas 4 are provided on the threaded end 1, at the regular distance apart denoted by the abovementioned L. Along these break-off areas 4, the screw thread has been removed, at least up to the valley, indicated by 10, of the screw thread. Furthermore, the break- off area 4 is divided in two identical parts by weakening 6, in this case a continuous V- shaped groove 6.
  • the weakening in this case has to be such that a break can be achieved with a minimum expenditure of effort, even by hand, but the impact on the (tensile) strength of the threaded rod is reduced to a minimum.
  • the groove may also have a round bottom, be shaped like an hour glass, or have a straight bottom.
  • the weakening is continuous, runs around the rod, preferably a continuous groove.
  • the break-off section 4 is illustrated in more detail in fig. 2b.
  • the peaks 9 and valleys 10 of the screw thread are clearly indicated. It can also clearly be seen in the inset that the screw thread has been removed in the break-off area 4, at least up to the valley 10 of the screw thread. As a result thereof, a nut or another component which is to run along the screw thread is able to pass the break-off area.
  • the weakening results in two areas 5 without screw thread, which are separated by the (in this case) continuous (in this case) V-shaped breaking groove 6 as weakening.
  • a set of threaded rods is provided, in which the length L between the break-off surfaces of the various threaded rods varies.
  • a threaded rod could for example be provided, in which the distance between the break-off surfaces is 2 cm, a threaded rod in which the distance between the break-off areas is 3 cm, and a threaded rod in which this distance between the break-off areas is S cm.
  • the threaded rod is preferably made of metal, such as iron or steel. However, it is also possible to make the threaded rod from a plastic, such as for example nylon.

Abstract

The invention relates to an assembly for producing a ready-to-use threaded end piece by an end user, comprising a threaded rod and a tool, in which the threaded rod is provided with external screw thread and with break-off areas at a regular distance apart, which distances determine a basic threaded end length, and in which the tool comprises an input or a passage through which a part of the threaded rod can be inserted or fed through up to a selected break-off area, and comprises a break-off facility for exerting a torque on a basic threaded rod, in which a first force of the torque is exerted at the selected break-off area for breaking off a threaded end from the threaded rod having a desired number of basic threaded end lengths.

Description

Threaded rod and assembly for producing ready-to-use threaded end pieces
Background of the invention
The invention relates to an assembly for producing a ready-to use threaded end piece by an end user, comprising a threaded rod and a tool, in which the threaded rod is provided with external screw thread, a threaded rod which is clearly suitable for and intended for such an assembly, as well as a tool which is clearly suitable for and intended for such an assembly.
In practice, threaded ends are produced by taking pieces from a threaded rod in various known manners or by separating them off by, for example, grinding, cutting by means of a pair of cutting nippers, sawing or another similar technique.
One of the problems thereof is that this usually damages the screw thread, in particular at the separating plane. As a result thereof, it is barely possible to fit a part, such as a nut, on the threaded end.
Summary of the invention
It is an object of the invention to provide an assembly by means of which a user can produce a ready-to-use threaded end in a simple manner.
It is a further object of the invention to provide a tool by means of which an end user can produce a ready-to-use threaded end in a simple manner.
It is a further object of the invention to provide a threaded rod by means of which an end user can produce a ready-to-use threaded end in a simple manner.
To this end, the invention provides an assembly according to claim 1. As a result of the break-off areas, it is possible to produce ready-to-use threaded ends by means of the tool. It is even possible to break the threaded rod in a breaking area by means of nothing more than manual force, although this is not advisable due to the possible risks of injury.
Further embodiments of the invention are described in the dependent claims in the attached description of the figures relating to an embodiment.
The invention furthermore relates to an assembly for producing a ready-to-use threaded end piece by an end user, comprising a threaded rod and a tool, in which the threaded rod is provided with external screw thread and with break-off areas at a regular distance apart, which distances determine a basic threaded end length, and in which the tool comprises an input or a passage through which a part of the threaded rod can be inserted or fed through up to a selected break-off area, and comprises a break-off facility for exerting bending forces on the threaded rod on either side of the selected break-off area for breaking off a threaded end from the threaded rod, which threaded end has a desired number of basic threaded end lengths, preferably on the one hand bending forces acting between the selected break-off area and the subsequent break-off areas and at least one counterforce acting on the selected break-off area.
In addition, the invention relates to a tool therefor.
It will be clear that the various aspects mentioned in this patent application can be combined and each individually qualify for a divisional patent application. Thus, the threaded rod and the tool may be the subject of a separate patent right.
Short description of the figures
hi the attached figures, various embodiments of an assembly comprising a threaded rod and a tool according to the invention are illustrated, in which: fig. 1 shows an assembly comprising a threaded rod and tool according to the invention; fig. 2a shows a part of a threaded rod according to the invention, and fig. 2b shows a detail from fig. 2a.
Description of an embodiment
Fig. 1 shows an assembly comprising a threaded rod 1 and tool 2 according to the invention, in which the threaded rod 1 is provided with break-off areas 4, which are situated a distance apart and in which the distance apart determines the length of the basic threaded end pieces 3, which form ready-to-use threaded ends after being broken off the threaded rod. Of course, it is also possible to leave several threaded ends together and, for example, to break off a piece of the threaded rod at, for example, the fourth break-off surface, so that a threaded end is obtained which has a length of four base length units. A threaded end is then obtained which has a length of four base length units. Generally, threaded ends are thus produced which are an integral multiple of the length of a base piece 3. Usually, a base piece will have a length of approximately 20-30 mm, preferably of approximately 25 mm.
In order for a nut to be able to pass from one base piece to another base piece, the length of the break-off area will be approximately 3-5 mm. Preferably, this length is approximately around 4 mm.
The tool 2 is provided with a slot 7, into which the threaded end can be inserted in a fitting manner, and is provided with a handle 8, which extends substantially radially with respect to the slot 7.
The operation is as follows. A user requires a certain length of threaded end. The user then counts the number of base units on the threaded rod which have to be removed from the threaded rod. The user will then insert the threaded rod into the slot 7 of the tool 2 with the end of the tool at the desired break-off surface. Upon moving the handle 8 towards the longitudinal axis of the threaded rod, the threaded rod will break at the breaking element, which is situated closest to the end of the slot 7 of the tool 2. In this case, the end user holds the threaded rod, for example in his hand, with the threaded rod protruding from his hand at the break-off area, where the breakage or fracture is to take place, and will place the tool on the threaded rod above his hand. If desired, it is possible to provide the threaded rod with two identical tools 2, in which case, for example, the one handle of the tool extends in the one direction and the other handle of the second tool extends in the other direction. Both tools will then be arranged on the threaded rod on either side of the break-off or fracture area, where the break has to be effected. It is also possible to arrange two tool parts or two tools on either side of the break-off area and to move the handles towards one another as a result of which a bending force is exerted on the threaded rod on either side of the break-off area.
Fig. 2a shows a threaded rod according to the invention in more detail. The threaded rod comprises basic threaded end pieces, the length of which is denoted by L. An end user or user of a threaded end piece can select the length of the final threaded end he requires by selecting a number of these basic threaded end pieces. Break-off areas 4 are provided on the threaded end 1, at the regular distance apart denoted by the abovementioned L. Along these break-off areas 4, the screw thread has been removed, at least up to the valley, indicated by 10, of the screw thread. Furthermore, the break- off area 4 is divided in two identical parts by weakening 6, in this case a continuous V- shaped groove 6. It is also possible to opt for a different shape, provided that it results in a clean break without causing damage to the screw thread. The weakening in this case has to be such that a break can be achieved with a minimum expenditure of effort, even by hand, but the impact on the (tensile) strength of the threaded rod is reduced to a minimum. The groove may also have a round bottom, be shaped like an hour glass, or have a straight bottom. Preferably, the weakening is continuous, runs around the rod, preferably a continuous groove.
The break-off section 4 is illustrated in more detail in fig. 2b. In this figure, the peaks 9 and valleys 10 of the screw thread are clearly indicated. It can also clearly be seen in the inset that the screw thread has been removed in the break-off area 4, at least up to the valley 10 of the screw thread. As a result thereof, a nut or another component which is to run along the screw thread is able to pass the break-off area.
The weakening results in two areas 5 without screw thread, which are separated by the (in this case) continuous (in this case) V-shaped breaking groove 6 as weakening. In order to make it possible to obtain a threaded end piece which is as close as possible to the length desired by the end user, it is preferable if a set of threaded rods is provided, in which the length L between the break-off surfaces of the various threaded rods varies. Thus, a threaded rod could for example be provided, in which the distance between the break-off surfaces is 2 cm, a threaded rod in which the distance between the break-off areas is 3 cm, and a threaded rod in which this distance between the break-off areas is S cm. By suitably selecting the various distances of the threaded ends to one another, it is possible to offer a set of threaded rods by means of which the end user can achieve virtually any threaded end length he desires.
The threaded rod is preferably made of metal, such as iron or steel. However, it is also possible to make the threaded rod from a plastic, such as for example nylon.
It will be clear that the above description has been incorporated in order to illustrate the operation of preferred embodiments of the invention, and not to limit the scope of the invention. Based on the above explanation, a person skilled in the art will be able to think of many variations which are within the spirit and scope of the present invention.

Claims

1. An assembly for producing a ready-to-use threaded end piece by an end user, comprising a threaded rod and a tool, in which the threaded rod is provided with external screw thread and with break-off areas at a regular distance apart, which distances determine a basic threaded end length, and in which the tool comprises an input or a passage through which a part of the threaded rod can be inserted or fed through up to a selected break-off area, and comprises a break-off facility for exerting a torque on a basic threaded rod, in which a first force of the torque is exerted at the selected break-off area for breaking off, threaded end from the threaded rod, which threaded end has a desired number of basic threaded end lengths.
2. The assembly as claimed in claim 1 , in which the break-off facility is adapted for substantially exerting a second force of the torque on a basic threaded end length distance from the first moment
3. The assembly as claimed in claim 1 or 2, in which the tool comprises a first stop and a second stop, in which the first stop is situated at an end of the tool where the threaded rod leaves the tool and the second stop is situated at a base thread length from the first stop.
4. The assembly as claimed in claim 1 , 2 or 3, in which the tool comprises a continuous accommodating space in which the first stop and second stop are formed by an inner surface of the accommodating space, the accommodating space is preferably a slot or groove or trench, in particular a groove whose diameter is adapted to the diameter of the threaded rod and preferably a length adapted to the length of the basic threaded end length.
5. The assembly as claimed in one of the preceding claims, in which the tool is furthermore provided with a handle which extends from the input or passage, preferably at an angle with respect to a threaded rod inserted in the tool, preferably substantially approximately at right angles to an inserted threaded rod.
6. The assembly as claimed in one of the preceding claims, in which the break-off areas have a diameter which is smaller than or equal to the diameter between two
5 valleys of the screw thread.
7. The assembly as claimed in one of the preceding claims, in which the break-off areas comprise a weakening, preferably a continuous weakening, more preferably a continuous groove, which weakening is adapted for resulting in a break at the
0 weakening when a bending force is exerted on the threaded rod, and is adapted so as to have little, if any, adverse effect on the tensile strength of the threaded rod.
8. The assembly as claimed in one of the preceding claims, in which the basic threaded end length is approximately 20-30 mm.
5
9. The assembly as claimed in one of the preceding claims, in which the break-off area is approximately 3-5 mm.
10. The assembly for producing a ready-to-use threaded end piece by an end user, tO comprising a threaded rod and a tool, in which the threaded rod is provided with external screw thread and with break-off areas at a regular distance apart, which distances determine a basic threaded end length, and in which the tool comprises an input or a passage through which a part of the threaded rod can be inserted or fed through up to a selected break-off area, and comprises a break-off facility for exerting
!5 bending forces on the threaded rod on either side of the selected break-off area for breaking off a threaded end from the threaded rod, which threaded end has a desired number of basic threaded end lengths, preferably on the one hand bending forces acting between the selected break-off area and the subsequent break-off areas and at least one counterforce acting on the selected break-off area. i0
11. A threaded rod intended for and suitable for use in an assembly as claimed in one of the preceding claims.
12. A tool intended and suitable for use in an assembly as claimed in one of the preceding claims.
13. A method for producing a ready-to-use threaded end by a user while using the S assembly as claimed in one of the preceding claims, in which the user counts the number of required basic threaded end lengths from one end of the threaded rod, inser the threaded rod into the tool up to the break-off area after said number of basic threaded end lengths, and exerts a torque on the threaded rod by means of the tool. 0
14. The method as claimed in claim 13, in which the user detains the threaded rod at the tool in order to exert a force on the threaded rod, directed counter to the first force of the tool, and which acts substantially before the next break-off area, counted from the tool. 5
15. A device provided with one or more of the characterizing features described in the attached description and/or illustrated in the attached drawings.
16. A method comprising one or more of the characterizing steps described in the attached description and/or illustrated in the attached drawings. -o-o-o-o-o-o-
EP07834624A 2006-10-06 2007-10-08 Threaded rod and assembly for producing ready-to-use threaded end pieces Withdrawn EP2086724A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2000263A NL2000263C2 (en) 2006-10-06 2006-10-06 Threaded rod and assembly for producing ready-to-use threaded pieces.
PCT/NL2007/050486 WO2008041852A1 (en) 2006-10-06 2007-10-08 Threaded rod and assembly for producing ready-to-use threaded end pieces

Publications (1)

Publication Number Publication Date
EP2086724A1 true EP2086724A1 (en) 2009-08-12

Family

ID=37898742

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07834624A Withdrawn EP2086724A1 (en) 2006-10-06 2007-10-08 Threaded rod and assembly for producing ready-to-use threaded end pieces

Country Status (3)

Country Link
EP (1) EP2086724A1 (en)
NL (1) NL2000263C2 (en)
WO (1) WO2008041852A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2111357A (en) * 1936-07-15 1938-03-15 American Radiator Co Pipe hanger
BE468602A (en) * 1939-11-28
US3928915A (en) * 1972-03-31 1975-12-30 Irving A Ellman Tooth anchoring means and method
DE9100237U1 (en) * 1991-01-10 1991-03-28 Krauskopf, Friedhelm, 5253 Lindlar, De
DE19954028A1 (en) * 1999-11-11 2001-05-17 Dal Georg Rost & Soehne Sanita Screw or bolt which can be shortened consists of alternating sections of flat material at right angles to each other which carry thread on their edges and are separated by slots

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008041852A1 *

Also Published As

Publication number Publication date
WO2008041852A1 (en) 2008-04-10
NL2000263C2 (en) 2008-04-08

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