FR2843657A1 - Ring/elasticated belt sleeve pull having sleeve enclosure held and bolt sleeve sliding pushing cable section/release simple pull - Google Patents

Abstract

The sleeve pull mechanism has a ring sleeve or elasticated belt type sleeve (5) in an enclosure. The sleeve pull has a bolt (2) which slides into the sleeve by the user pushing on a cable section (3). Release is by a simple pull.

Description

-1 The present invention relates to a device for pulling the sheaths

  electric or non-electric, in order to pass them more easily inside

appropriate partitions.

  The passage of electrical conduits, of type ICTA or Annually Transversally Elastic Bendable Insulation, is traditionally carried out in two operations. The first relates to the passage of a wire or cord inside the partitions, in order to establish a connection between the place where the sheath is located and the point where it must go. The second operation consists in attaching the electrical sheath to the previously drawn connecting wire, which allows the sheath to be brought back to the desired location. All of this shaping wastes time for the manipulator who must securely attach the sheaths to the guide wire. In addition, the width of said sheaths increases at the level of the fastener because it comprises cord and adhesive tape; this system also has the disadvantage of not

  facilitate the passage of the electrical sheath in certain partitions 15 of insulating components, such as glass wool, rock wool, or other dimpled partitions.

  Two other methods can be applied as a puller and have

is the subject of patent applications.

  The first method relates to the publication number FR-2813334 dated August 23, 2000. This method comprises a device making it possible to reassemble the electrical sheaths in the partitions, by screwing onto said sheaths. This device, which is screwed outside said sheaths, is therefore wider than the diameter of the electrical sheath; which creates unnecessary additional space. The operation of the device, that is to say its screwing on the corrugated sheaths, proves to be delicate and physical, because the user must make a substantial imprint in the plastic of the sheath by screwing the device. In addition, the manufacture of the device in question proves to be delicate and costly because it comprises a tapping with a sharp pitch, inside the part and a shaped ring and

  welded to the top end of this device.

  The second method concerns the publication number USP-5687954 dated November 18, 1997. This process comprises four separate and - 2 separable parts. The operation of fixing the device inside the sheath requires the operator to perform four operations. Two of these parts are nuts, so a screwing operation is necessary; one can therefore think that the fixing of the device takes a certain time. Similarly, four small separable parts can also suggest that the user can easily lose them. The upper end of the device is inadequate when it passes through partitions of glass wool, rock wool, honeycomb partitions, polystyrene, because of its shape in cow horn specific to the technique of the device. Indeed, pieces of insulation can be shredded during the passage of

  the entire device and the sheath, in the partition, and cause a jam.

  All of these four parts are complex to machine and expensive to produce.

  The device according to the invention overcomes these drawbacks. According to a first characteristic, it comprises a device composed of three inseparable parts. The user must house the entire device inside the corrugated sheath 15, block the sheath and device assembly and pull on the cable, which causes this assembly to block. A simple push on the cable releases the

sheath device.

  The attached drawing illustrates the invention:

  Figure 1 shows in section, the device of the invention.

  With reference to this drawing, the device comprises a body (1), the interior of which is machined in the form of a female cone at the lower end of the body (1). The lock (2), machined into a male cone shape, slides inside the body (1) when the user pulls on the cable (3), which is integral with the lock (2), while maintaining the end upper body (1). The tongues (4) components of the body (1), widen as the lock (2) enters the interior of the body (1). Blocking this

  together, occurs when the two male and female cones come into contact.

  The user can then release his tensile force on the cable (3): the device is blocked. A simple push in the opposite direction on the cable (3) unlocks the device. For the use of the device in the sheath, it suffices for the user to place the device inside the sheath (5). While maintaining the assembly of -3 the high end of the device and the sheath (5) the user pulls on the cable (3). The tabs (4), deformed towards the outside of the device, thanks to the penetration of the lock (2) in the body (1), slide inside the rings of the sheath (5). The sheath assembly (5) plus device is then secured. After establishing a wired communication between the starting point of the sheath (5) and its final destination, the user attaches the cable (3) to the wire serving as connection, and brings the sheath (5) to the desired location. A simple push on the cable (3)

  separates the device from the sheath (5).

  The device would rather be suitable for passage through partitions of cellular types, 10 plaster plus glass wool, plaster more rock wool, placostyl, plaster more polystyrene, and in places such as construction voids, false ceilings and roof spaces. The upper end of the body (1) has rounded shapes, reminiscent of a champagne cork, which allows the device to slide over the obstacles 15 that may be encountered inside the various partitions. This same high end has the same diameter as the various sheaths used in order to cap them entirely. The cable (3) is centered in the body (1) in order to avoid kinking of the sheath assembly (5) plus device when they are pulled inside the partitions. The material of the device will be rather plastic, in particular the body (1) provided with tongues (4) which must have a reduced function. So we will rather use

a memory plastic.

  According to a variant not illustrated, the cable (3) can contain various rings

  of specific shapes and adaptable to knockout accessories or passage through partitions.

  The device can be adapted to all sheaths, since the technique will be based on the same principle and only the dimensions of the device will change in order to adapt to the internal diameters of the sheaths provided for this purpose. -4

  The device according to the invention is particularly intended for pulling electrical conduits ICTA or other corrugated conduits, in partitions or other places suitable for handling the conduits provided with the device.

-5

Claims (5)

  1) Device for facilitating the passage of ICTA electrical conduits or corrugated conduits (5) in partitions, characterized in that it comprises a body (1) in which is housed a lock - (2) which slides therein, when actuated by the user by means of the cable (3) which is integral with the lock (2). 5 2) Device according to claim n 1 characterized in that the lock (2) is blocked in the body (1) by a system of male and female cones,   when the cable (3) is pulled by the user.   3) Device according to claim n 2 characterized in that the   penetration of the lock (2) in the body (1) widens the tabs (4).   4) Device according to claim n l characterized in that one conical assembly, body (1) and latch (2) is released by a simple push of the user on the cable (3).   ) Device according to any one of the preceding claims   characterized in that the body (1) has a rounded shape at its upper end.   6) Device according to claim n 5 characterized in that the cable (3) is centered in the body (1).   7) Device according to claims n 5 and n 6 characterized in that   the upper end of the body (1) has the same outside diameter as the 20 sheaths on which it fits.