FR2530385A1 - BLOCK FOR PASSING ELONGATE ELEMENTS SUCH AS WIRE OR CABLES - Google Patents

Abstract

THE BLOCK ACCORDING TO THE PRESENT INVENTION ALLOWS TO PASS OR GUIDE EXTENDED ELEMENTS SUCH AS WIRES OR CABLES. IT INCLUDES A BODY 12 AND FIXING ELEMENTS 16, THE BODY INCLUDING A FIRST SIDE 24 CONTACTING A SUPPORT SURFACE AND A SECOND EXPOSED SIDE 22, AT LEAST TWO CAVITES 26, 28 BEING SHAPED IN THE FIRST SIDE, EACH OF THEM THEY CROSSING THE LATTER IN A PREDETERMINED DIRECTION, AT LEAST ONE BORE BEING SHAPED SO AS TO BE PERPENDICULAR TO EACH OF THE CELLARS AND TO BE OFFSET WITH RESPECT TO THESE. THE FIXING ELEMENTS 16 INCLUDE A POINTED PART AND A SECOND TRUNCON 20 THAT CAN BE HITCHED BY A TOOL SO THAT THESE ELEMENTS ARE EMBEDDED IN THE SUPPORT SURFACE. FIELD OF APPLICATION: FIXING OR GUIDING CABLES ON A HARD SURFACE SUCH AS CONCRETE.

Description

The present invention generally relates to an improved device for

fix by squeezing a wire or a

cable to a work surface.

  Clamping devices of this general type are known and are used with varying degrees of efficiency.

  present invention are the result of attempts to restore

  Problems with the device described in US Pat. No. 4,127,250. Other prior devices involve the passage of cables using staples having a compressible material.

forming bridge.

  Except for the device disclosed in U.S. Patent No. 4,127,250, there is no yarn passing device on the market for

  be used with many different support surfaces

  rents, including concrete surfaces.

  particulars which are posed by the fixing of a device

  wire to concrete are different from those

  Controlled when attaching to surfaces that have less structural integrity The device described in the cited patent has solved the global problem posed by a universal device by providing a plastic block made of a very durable material such as polycarbonate type "Lexan", in which there is a cavity passing through a surface for receiving and clamping a wire, and a pair of hardened steel pins which are intended to be struck by a hammer and driven into the support surface, for example in

concrete.

  The problems with the devices of the prior art are as follows: (1) the plastic block is often broken because it receives too much energy by means of the tool used to drive the pins; (2) the block can pass only one dimension of wire; (3) the block breaks when one of the pins has been depressed

  in the concrete and that the second spindle being

  darkly meets a piece of almost impenetrable aggregate that one has tried to avoid; (4) the block does not lie level with respect to the

  support surface due to the bursting of the concrete when

  the pin enters, this problem being complicated

  the extrusion down the plastic block by the spindle; (51 the block damages the support surface when the support surface has less structural integrity because

  the important strike force needed to

  darken the pins through the block.

  All these problems have been solved by the device of the present invention, as shown

the description below.

  The yarn passing device according to the present invention advantageously provides: (1) an impact absorbing ring which collapses upon striking, so as to absorb excess energy from the tool used to punch the spindle

  (2) several cavities for the passage of various dimensions

  and a variety of wire and cable configurations (31 means that the tip of the spindle avoids almost impenetrable objects, for example a piece of concrete aggregate.

  (4) a cylindroconic bore which has a different included angle

  in the frustoconical portion relative to the included angle of the tapered portion of the spindle so as to allow the plastic directly aligned with the end of the cylindrical bore to be extruded upwardly around the spindle as it is depressed to thereby provide a compact area in the support surface that penetrates the spindle;

  (5) means for driving the pins into the block;

  being held in a pre-depression condition to thereby allow the fixing of this device for passing the wire to support surfaces having a lower structural integrity, for example stucco or plaster, by an impact of a force less than that required to drive the pins through

  the block and in the support surface.

  The present invention aims to create a new configuration of the block to achieve

the benefits above.

  Another object of the present invention is to manufacture the block in a cost-effective and economical manner

  while offering an effective operating product.

  Other features and benefits of the

  present invention will emerge from the detailed description

  In the drawings: FIG. 1 is a perspective view of FIG. 1, which is taken with reference to the drawings wherein the same reference numbers are used in various figures to designate elements or similar components. a clamping block according to the present invention, showing a double cable which passes through the block; Fig. 2 is a partially sectional perspective view showing the device for preventing concrete aggregates, as well as a larger single target passing through the block; FIG. 3 is a perspective view of a

  rectangular embodiment of the present invention.

tion;

  FIG. 4 is a view in trans section

  versale showing the relationship between the tip of the spindle and the bottom of the cylindroconic bore;

  FIG. 5 is a view in trans section

  versale showing the hanging elements to avoid the aggregates, and the receiving cavity of the cable; Fig. 6 is an end view of the device of the present invention showing the relative positions of the bores, aggregates avoidance members, crushable rings and cavities; Fig. 7 is a side view of the embodiment of Fig. 3 showing the pins pre-depressed with respect to the block; and Figure 8 is a top view of a portion of the device showing a shock absorber disposed

Annually and segmented.

  With reference to the drawings, and in particular to FIGS. 1 and 3, it will be noted that the clamping and wire-passing assembly 10 essentially comprises a block 12 comprising two bores 14. Block 12 has an upper surface 22 and a lower surface. 24 A pin 16,

  with a cylindrical portion 17 having a complete dimension

  The pins 16 are preliminarily positioned in such a manner that their pointed ends 18 are received in each respective bore 14 and their end portions 20, struck by a conventional tool extend above the upper surface of the block Instead of being straight (as best shown in Figure 5), the pins can be formed as part of a U-shaped clip (see Fig. 3) The block includes transversely extending cavities 26, 28 for receiving a cable or wire.

  preference between the bores for reasons which appear

  The block shown in FIGS. 1 and 2 is particularly suitable for passing cables of different dimensions or configurations.

  while the device shown in Figure 3 is appro-

  requested to pass a single cable of a

  It will be understood that the rectangular block may have a similar arrangement of cavities 26, 28,

and vice versa.

  The cavities 26, 28 extend transversely across the entire width of the block 12 and preferably

  have narrow orifices as shown by the protuberances

  30 of FIG. 5, these being provided to assist in pre-assembly of the block on a cable prior to installation of the device on a support surface. Each ideal cavity comprises a voltage release member 32 for placing the cable relative to to the support surface 34 because it opposes the movement of the cable

along its longitudinal axis.

  As best shown in FIGS. 1, 2 and 3, the cable-passing device comprises a shock-absorbing annular ring 36 disposed on the upper surface 22 of the block 12 and protruding upwardly therefrom. impact absorbers 36 are placed around the open end of each bore 14 and are integrally molded with the block 12. Each shock absorber 36 is crushed during a severe impact and substantially absorbs the excess force that can be exerted. a conventional tool when used to drive the pins 16 According to the present invention, the impact absorbing protuberances 36 may have

  many different shapes, namely an annular ring

  Continuous (see element 36 of Figures 1-3), a segmented annular ring 37 (see Figure 8) and protuberances in the form of ribs, etc. In Figures 1, 2 and 6, there are a number of shapes and sizes of transverse cavities

  26, 28 formed in block 12 and which allow the

  It will be seen in FIG. 1 that there are parallel transverse cavities 26 which are particularly designed to pass a twin-type cable 38 or alternatively a pair of individual cables side by side, and in FIG. 2 there is only one cavity 28 for guiding a single coaxial-type cable 40 The cavity 28 is shown in the figure as being substantially perpendicular by relative to the parallel pair of transverse cavities 28 While the angle of intersection of the cavities 26, 28 may vary, the critical characteristic is that the cavities 26, 28 are placed between the two bores 14 With reference to FIG. sees that transverse cavities

  parallel 26 communicate with each other to

  In parallel to these cavities 28, but with a certain spacing with respect to these cavities, we see a transverse cavity

  smaller 42 for a much smaller wire or cable.

  It is readily apparent that the cavities can take any size or shape necessary for adaptation to a particular wire or cable. Referring again to FIG. 5, it will be seen that the cavities could include, if desired, directed extensions. inward 30 to make contact with the wire

  and hold it back from the block.

  It can be seen in FIG. 1 + x point 18 being frustoconical and each frustoconical portion 18 of each cylindroconic spindle 16 having an included angle I which is approximately 450 and which is preferably in the range of 40 to 500. Each bore 14 of the block 12 also has a cylindroconic shape but has

  a frustoconical portion 44 having an included angle

  larger than that of the tapered portion 18 of pin 16 In general, the included angle of the

  frustoconical bore is included in the range of 60.

  The advantage of such a system is that when the lower surface of the block 12 is juxtaposed to a support surface 34, for example concrete / and the pin 16 is struck and pushed through the end of the cylindrical bore 14 in the support surface 34, it can be seen that the material of which the block 12 is formed cooperates with the tip 18 to form a positive compaction of the surface 34 in the zone 35 into which the tip 18 of the spindle penetrates. included angle of the tip 18 of the spindle is smaller than the included angle of the frustoconical portion 44 of the cylindrical bore 14, the initial compaction of the support surface 34 takes place in the area near the end even the tip 18 of the spindle Compaction generally increases in a radially concentric manner with respect to

  point of initial compaction, which makes it possible

  the risk of bursting of the support surface 34.

  If the included angles are equal, a less desirable effect is achieved because the material directly aligned with the end of the bore is depressed downward at too great a rate, so that the device is pushed to the distance from the surface The system disclosed by the present invention allows to have a very game

  tightened block 12 relative to the support surface 24.

  It can now be seen with reference to FIGS. 2 and 5 that the cylindrical bore 14 is inside a sleeve 46. The block has an upper wall 48 from which hangs the sleeve and with which the sleeve 46 is integrally formed The sleeve 46 is provided to be able to bend at the point of attachment with the top wall 48 so as to allow the axis

  longitudinal axis of the pin 16 received in the cylindrical bore

  taper 14 and-to the sleeve 46 to shift towards a point along which the axis could move.

  is achieved by the inherent flexibility of the material -

  around the attachment of the sleeve to the wall 48 of the body 12 The advantage of this is that during the installation of the wire passage device 10 on a support surface 34 such as concrete, the tip of the pin may attempt to avoid a possible aggregate when one of the pins 16 is pressed into the surface of the support 34 and

  that the other is then pushed and hits an essen-

  impenetrable, for example a piece of such an aggregate This system allows the pin 16 to be no longer parallel when it is depressed, which prevents the breakage of the block 12 which would take place otherwise as a result of the constraints it would suffer if the block 12 was in one piece According to the present invention, the sleeve 46 may be of the continuous type or the segmented type A segmented sleeve would if necessary a greater deviation of the longitudinal axis at its lower end because only a segment the sleeve would need to be deflected

when the axis is shifted.

  A segmented sleeve that has segments

  of sleeve during individually (not shown) can

  be maintained in a predetermined configuration by a breakable ring (not shown) at the lower end As a pin 16 is driven through the ring, it would ideally break, thereby freeing the individual segments and would allow a greater deviation of the axis with dependent positive holding of the pin 16 in a partially pre-depressed position. This segmented sleeve system allows a substantial reduction of the stress in the area where the sleeve is attached to the c 8. lower wall: upper

48 of the body 12.

  If we now examine Figure 7, we can see that the pins 16 were pre-pressed in this example

  compared to block 12 and that a cable 40 has been pre-

  When assembled in a transverse cavity 28, the delivery device is shown in this figure, and can be used with support surfaces 34 which have a substantially lower structural integrity than concrete. A typical problem encountered when installing devices of this type

  on plaster or stucco is that the necessary energy

  The striking on the end 20 of the pin 16 to be able to drive it relative to the block 12 is important and more than sufficient to damage the support surface 34 By inserting the pins 16 beforehand, an impact can be seen. nominal is necessary to push the pins relative to the surface of the support made of a material such as plaster When -the device of

  clamping 10 is used in this particular configuration.

  In this case, the impact absorbing rings 34 cooperate with the sleeve 46 to avoid the aggregates so as to allow the pins 16 to be depressed and to play as needed, within the support surface while preventing the possible damage to the surface of the block 12 and the support surface 34 The method for using this device thus causes the pre-insertion of the pins 16 with respect to the block 12, the attachment of the block 12 to the cable 40, the positioning of the device relative to the support surface 34 and the depression of the pins 16 in the support surface 34 by striking the block in the overall region of the impact absorbing rings 36

  as well as the ends 20 of the pre-sunken pins 16.

  We see from the description above

  that the present invention can provide a simple and effective device for tightening and passing or guiding

  wires and cables for attachment to a support surface.

  The obvious advantages are that any damage to the block is more or less avoided by the impact absorption ring, the block's ability to pass cables or wires of different sizes and configurations, and the fact that the device can be used on a support surface that has particles or objects that are substantially impenetrable The method for pre-driving the pins and for using the block with respect to a support surface of lesser structural integrity

  clearly benefits-appreciated by the specialists

  lists, because the repair of damaged surfaces

is almost never necessary.

  While various specific embodiments of the various aspects of the present invention have been disclosed, it will be appreciated that various changes and modifications may occur without departing

of the scope of the invention.

1 111, -

Claims (11)

  Apparatus for the passage or clamping of at least one elongated object of predetermined dimensions with respect to a support surface (34), characterized in that it comprises a body (12) and fastening elements (16), the body having a first side (24) engagable with the support surface (34) and a second substantially uncovered side (22), at least two cavities (26, 28) being formed in the first side (24) , each of the two cavities completely traversing the first side (24) in a predetermined direction, at least one bore (14) substantially perpendicular and offset from the longitudinal axis of each of said cavities (26, 28), the fasteners (16) having a first substantially pointed end (18) and a second portion (20) to be struck by a tool, each of the cavities (26,28) being adapted to receive and position an elongate object of one dimension in a manner cross section differs from that of the elongated object received by the other cavity.   2 Device according to claim 1, characterized in that said body comprises two bores each of which is disposed on opposite sides of the two cavities (26, 28), the fastening elements cooperating with the two bores so as to fix the   device on the support surface.   3 Device according to claim 2, characterized in that each of the cavities is arranged   substantially perpendicular to the other.   4 Device according to claim 3, characterized in that at least one (26) of the cavities is a dual cavity capable of receiving and positioning a coaxial cable of the twin type.   Device for positioning an elongate object with respect to a support surface, characterized in that it comprises a body portion (12) having a first side (24) adapted to contact the support surface (34) and a second side (22) 1 1 substantially uncovered, a cavity (28) being formed in the first side so as to completely pass therethrough in a predetermined direction, at least one bore (14) formed in the body (12) being disposed on one side of the cavity (28), fasteners (16) having a first end (18) adapted to be retained within a bore (14) by a retainer and a second portion (20) extending outwardly from the exposed side of the body (12), the first   end (18) having a pointed end of penetration   and the second portion (20) being adapted to be struck to axially press the fasteners (16), means (36) forming an integral portion of the second side of the body (12) being provided to absorb the impact energy.   6 Device according to claim 5, characterized in that the means (36) for absorbing energy comprise a projecting protuberance disposed annulaireuent and surrounding the zone o the fastening elements (16)   penetrate into the bores (14), so that when   that the second portion (20) of the fasteners is struck by a tool, the energy exceeding the amount   necessary to drive the fastening element   dissipated by bringing the tool into contact with 1 protrusion (36).   7 Device according to claim 6, characterized in that the projecting protuberance arranged   Annually (36) is a continuous ring.   Clamping device for positioning an elongate object with respect to a support surface, characterized in that it comprises a body portion (12) and a fastener (16), the body portion including a first side ( 24) for contacting a support surface and a second substantially uncovered side (22), a cavity (26) formed in the first side completely passing therethrough (22).   in a predetermined direction, at least one cylindrical bore   conical member (14) being formed in the body (12) and being disposed on one side of the cavity (26), the cylindroconic bore having a frustoconical portion with an included angle of a first predetermined value, the fastening means (16) ) being substantially cylindroconic and its frustoconical portion having an included angle of a second predetermined value, the fastener being adapted to be received in at least one of the bores and to be axially depressed into the support surface so as to secure the device relative to this surface-.   Apparatus according to claim 8, characterized in that the first predetermined angle is   greater than the second predetermined angle.   Device according to claim 9, characterized in that the second predetermined angle is in the range of 40 to 50.   11 Device according to claim 8, characterized in that the distal end of the cylindroconic bore is juxtaposed with a plane containing the first side (24), so that the frustoconical part of the fastening element (16) can be thrust through the frustoconical portion of the bore to become embroiled in the support surface.   Device according to claim 11, characterized in that the body portion (12) is integrally molded from a plastic material and that the fastening elements (16) are made of metal, so that when the frustoconical part fastening elements (16) are driven through the frustoconical portion of the bore (14), the plastics material of the region of the frusto-conical portion of the bore is extruded upwardly around the fastening elements (16), which compact this surface where the fasteners penetrate.