EP1005959A1 - Method for setting a base element for fastening an element and fastener-driving tool for carrying out the method - Google Patents

Abstract

With the help of a plug fixing tool having a plug guide (30) the base and the end (23) of the plug guide are fixed together by relative movement in a plane perpendicular to the plug guide axis (21). The base is applied against a receptor support (100) and is fixed by a plug. When the base constitutes a female part to be fixed to the end of the plug guide this has an external annular groove (24) for receiving a base clipping jaw (11).

Description

In the building sector, fixing bases are often used for fixing cables, tubes, trunks, and other parts to a support of this type.

A cable mounting base, to use this example, includes means for supporting the cable and means for fixing the base to support.

To fix the base to the support, we generally use a nailer provided a buffer guide which is secured at its end to the base, by example by pushing the end of the tampon guide into a recess for receiving the base.

For security reasons, the nailer includes a security system which prohibits any firing of buffer without prior pressing of the nailer against a mounting bracket.

However, there is a significant risk of causing unlocking the security system by securing a base attachment and end of the nailer buffer guide, by axial thrust (i.e. in the direction of the axis of the tampon guide) from the end of the tampon guide against the base. In these conditions, the nailer can be driven in the support and firing position without being supported against a support.

The invention aims to overcome this drawback.

To this end, the invention relates to a method of installing a base of attachment of a workpiece to a support, using a buffer attachment tool provided with a buffer guide, during which the base is secured and the end of the buffer guide, apply the base against the support and fixes it there using a buffer, a process characterized by the fact that it is secured the base and the end of the buffer guide, by a relative movement of the base and the end of the buffer guide, relative to each other, in a plane perpendicular to the axis of the stamp guide.

Thanks to this, for the attachment of the base and the end of the buffer guide, we no longer exert an axial thrust effort but an effort radial, so that any risk of unlocking the system is avoided security. In addition, thanks to the invention, the minimum effort can be reduced required to drive the fixing tool in the support position. We thus reduces operator fatigue, for example during installation, using with one hand, a mounting base on a ceiling.

The relative movement of the base and the end of the tampon guide can be a translational movement, preferably a movement of straight translation.

Advantageously, the end of the buffer guide and the base are secured by clipping.

The invention also relates to a tool for implementing the method. previously defined, comprising a buffer guide arranged to secure to the mounting base, characterized in that, the base constituting a male part for securing with the end of the buffer guide, the buffer guide provides a lateral and axial slot for passage of the base.

The invention also relates to a tool for implementing the method comprising a buffer guide arranged to be secured to the base of fixing, characterized in that, the base constituting a female part for securing with the end of the tampon guide, the tampon guide is provided with means for blocking the base.

Advantageously, the blocking means of the base include a external annular groove for receiving a clipping jaw the base.

• la figure 1 représente une vue de dessus de l'embase de fixation, selon la forme de réalisation particulière;
• la figure 2 représente une vue de dessous de l'embase de la figure 1;
• la figure 3 représente une vue en perspective de l'embase de la figure 1;
• la figure 4 représente une autre vue en perpective de l'embase de la figure 1 montée sur une extrémité de guide-tampon et
• la figure 5 représente une vue en coupe latérale de l'embase et de l'extrémité de guide-tampon de la figure 4.

The invention will be better understood with the aid of the following description of the fixing base and of the fixing tool of the invention, in a particular embodiment, as well as of a particular embodiment of the method. for fitting the mounting base, with reference to the attached drawing in which:

• Figure 1 shows a top view of the mounting base, according to the particular embodiment;
• 2 shows a bottom view of the base of Figure 1;
• Figure 3 shows a perspective view of the base of Figure 1;
• FIG. 4 represents another perspective view of the base of FIG. 1 mounted on one end of the buffer guide and
• FIG. 5 represents a side section view of the base and of the end of the tampon guide of FIG. 4.

The base, intended here to fix a cable to a support, is monobloc and has an axis 5 and an axial plane of symmetry P, containing axis 5, all two perpendicular to the plane of Figures 1 and 2.

The base includes a lower part 10, a base, for fixing to the support and an upper part 20 for attachment to one end of pad guide of a pad attachment tool. The lower part 10 and the upper part 20 are joined to each other by a joint plane perpendicular to axis 5.

The lower part 10, generally in the form of a flat cylinder of axis 5, comprises, on the lower side opposite to the upper part 20, a surface 6 of support against the support, perpendicular to axis 5, and cleaning, on the side upper, a recess 1, substantially of parallelepiped shape, having a bottom 2. A central hole 3, centered around the axis 5, and through, receiving a buffer is formed in the bottom 2, as well as two openings 4, 4 ', respectively on either side of the plane P.

The upper part 20 comprises two parts 12, 12 'each having a shape of a portion of a ring, arranged opposite one another, on the side and on the other side of the plane of symmetry P, and thus forming a jaw 11 of clipping, gripping the end of the tool tool buffer guide fixation. The two parts 12, 12 'of the jaw 11 provide between them a space 15 for receiving the end of the tampon guide, extending laterally and axially, on both sides of axis 5, respectively by two lateral and axial openings 14, 14 'for passage of the end of the buffer guide.

By the terms "axial" and "axially" is meant here to qualify what extends in an axial plane, in this case for the base, the plane P containing the axis 5.

Each part 12, 12 'of the jaw 11 is, in its lower portion of junction with the lower part 10, crossed by a light 13, 13 ' communicating with the recess 1, provided for the passage of a thong of holding the cable to be fixed and for receiving the end of the buffer guide, as will be explained later.

The portion of the lower part 10, located substantially in the lower extension of each of the parts 12 (12 ′) of the jaw 11, extends slightly outward, beyond the jaw 11, and has an upper surface 16 (16 '), jaw side 11, for receiving, for supporting a strap to hold the cable to be fixed.

The tampon fixing tool of the invention, for fixing to a support the base described above, does not differ from a conventional fixing tool of the type of that described by document FR-9514763, only by certain elements which will now be described. For the sake of clarity, only the elements necessary for understanding the invention will be explained.

The fixing tool conventionally comprises a buffer guide 30 and a security system.

The buffer guide 30, extending along an axis 21, is intended to receive a pad and, after pressing against a fixing support, to guide this buffer propelled forward when fired, so that it sinks correctly in the holder. For fixing the base previously described on a support, the end 23 of the buffer guide 30 is arranged to be secured to the base, as will be more precisely explained by the following.

The security system is arranged to lock the tool in the position of rest and unlock it in the position of abutment against a support fixing, unlocking being effected by the action of a pushing force axial (that is to say parallel to the axis 21) of the tool against the support. Thanks to this, the security system prohibits any firing of stamps without setting prior support of the buffer guide against the support.

The end 23 of the buffer guide 30 forms an external annular groove 24, for receiving and blocking the jaw 11 of the base. "The end" here means the free end part of the buffer guide, which by definition is located at the front of the fixing tool.

The anterior wall 25 of the groove 24, closest to the end edge anterior free of the buffer guide 30, is inclined on the axis 21, the groove 24 widening towards the anterior end of the buffer guide 30.

The portion 22 of the end of the buffer guide located between the front edge free end of the buffer guide 30 and the groove 24, in other words at the front of the groove 24, has an outer diameter smaller than that of the portion of the buffer guide 30 located at the rear of the groove 24, so as to facilitate the connection of the base and the end 23 of the buffer guide 30.

After the structural description of the base and the attachment tool buffer, the method of installing the base on a support 100 will now be described.

To install the base on the support 100, the base is first secured and the end 23 of the buffer guide 30 of the fixing tool, then we fix the base to the support 100 using a buffer.

Securing the base and the end of the buffer guide

To secure the base and the end of the buffer guide, mount the base on the end 23 of the buffer guide 30 while driving the base and the end 23 of the buffer guide 30, one relative to the other, in a relative movement here of rectilinear translation, in a plane perpendicular to the axis 21 of the buffer guide 30, as well as to the axis 5 of the base. During this movement, the end is introduced laterally 23 of the buffer guide 30 inside the jaw 11 of the base, that is to say in the reception space 15, by passing through one of the lateral and axial openings 14, 14 ', so that the axis 5 of the base and the axis 21 of the buffer guide are merged.

During this translational movement in the plane perpendicular to the axis 21, no axial force is exerted, parallel to this axis 21, but only a radial force, that is to say perpendicular to the axis 21, so that does not risk unlocking the security system of the fixing tool.

The jaw 11, received in the groove 24, grasps and clamps the end 23 of the pad guide 30, the jaw 11 and the pad guide 30 thus joining by clipping. The annular peripheral portion of the front part 22 of the end 23 of the buffer guide 30 is partially introduced into the lights 13, 13 ′ of the base and the rear wall of the groove 24 is in bearing against the upper surface of the parts 12, 12 ′ of the jaw 11. In this position, the groove 24 blocks the base, making it difficult to relative movement of the base and the end 23 of the buffer guide 30, relative to each other, in translation parallel to axes 5 and 21 confused.

It will be emphasized here that the base is a female part and the end 23 of the buffer guide 30 a male part for securing one to the other.

Attaching the base to the support

After mounting the base on the end 23 of the buffer guide 30, we apply the base against the support 100, by its bearing surface 6, we put in press the fixing tool against the support 100, exerting an axial force of thrust against the support 100, which unlocks the tool via of the security system, then draw a tampon using the tool. Axis 21 of the buffer guide 30 and the axis 5 of the base being combined, the buffer comes sink into the support 100, through the hole 3, and fix the base to the support 100.

Support outlet

After fixing, the buffer guide 30 comes out of support by peeling it off from the support 100. When leaving the support, we drive the fixing tool to rear, in the axial direction (parallel to axes 21 and 5) opposite to that firing, thereby removing the end 23 of the buffer guide 30 from the base. It will be emphasized that the removal of the end 23 from the base is facilitated by the inclination of the anterior wall 25 of the groove 24.

Cable fixing

Finally, in a known manner, a portion of the cable to be fixed is inserted between the two parts 12, 12 'of the jaw of the base and in the openings side 14, 14 ', and the cable is fixed to the base using a strap that is introduced into the reception lights 13, 13 ′ and which are tightened around the cable.

In the description which has just been made, the base and the end of the buffer guide constitute respectively a female part and a male part, for the joining of one and the other.

In another embodiment, not differing from that described previously, the base constitutes a male part and the end of the buffer guide a female part, for the joining of one and the other. The base includes means for locking the buffer guide in translation parallel to its axis and the end of the buffer guide saves resources for receiving the base having a lateral and axial passage slot of the base.

We could also consider securing the base and the end of the buffer guide by a curvilinear translational movement or by any other relative movement of the base and the end of the buffer guide, one by relative to each other, in a plane perpendicular to the axis of the buffer guide.

Claims (8)

Method for fitting a mounting base for a part to a support (100), using a tampon fixing tool provided with a tampon guide (30), at during which the base and the end (23) of the buffer guide are secured (30), apply the base against the support (100) and fix it with a buffer, process characterized in that the base is secured and the end (23) of the buffer guide (30), by a relative movement of the base and the end (23) of the buffer guide (30), one with respect to the other, in a plane perpendicular to the axis (21) of the buffer guide (30). The method of claim 1, wherein the relative movement of the base and the end (23) of the buffer guide (30) is a movement of translation. The method of claim 2, wherein the relative movement of the base and the end (23) of the buffer guide (30) is a movement of straight translation. Method according to one of claims 1 to 3, wherein it is secured the end (23) of the buffer guide (30) and the base by clipping. Tool for implementing the method of claim 1, comprising a buffer guide arranged to be secured to the base of fixing, characterized in that, the base constituting a male part for securing with the end of the tampon guide, the tampon guide provides a lateral and axial slot for passage of the base. Tool for implementing the method of claim 1, comprising a buffer guide (30) arranged to be secured to the base of fixing, characterized in that, the base constituting a female part for securing with the end of the tampon guide, the tampon guide (30) is provided with means (24) for blocking the base. Tool according to claim 6, in which the means (24) for locking the the base include an external annular groove (24) for receiving a clamping jaw (11) of the base. The tool of claim 7, wherein the outer annular groove (24) comprises a wall inclined on the axis of the tampon guide (30).

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