DK200200164U3 - Friction sleeve for mounting on a drill cartridge - Google Patents

Description

in DK 2002 00164 U3

The invention relates to a drill cartridge for mounting on a drill / screwdriver, wherein the drill cartridge is of a type that is tensioned by - or without - the use of tools, and more particularly relates to an aid for mounting on such a drill cartridge, whereby the mounting of nuts on long threads facilitated.

When mounting, for example, ceilings that are mounted hanging under a floor separation or when mounting ventilation ducts or the like under ceilings, long threaded rods are often used as a suspending means. With the threaded rods, it is possible to place several items / elements on the same threaded rod. For example, cable trays, ventilation ducts and ceiling panels can be mounted on the same threaded rod, but at different heights.

These various parts / elements are usually placed resting on a nut on the said threaded rod, and in this way a good possibility of adjusting the height of the current item is obtained. So far, mounting of these nuts has been carried out by hand, ie with fingers / hand - if possible - and otherwise with ordinary hand tools such as wrenches and the like. This method of assembly is both time-consuming and also constitutes a monotonous and tiring task.

The object of the invention is to provide a tool which ensures a quick mounting of nuts on a threaded section, for example in connection with mounting of ceiling panels, ventilation equipment and the like, which are often mounted hanging below the actual ceiling.

In particular, a drill cartridge according to the invention is characterized in that the drill cartridge has at least one circumferential part area with an elastic friction surface.

This friction surface, when the drill / screw machine is held approximately parallel to a threaded rod on which a nut is traditionally mounted, abuts against the nut, thereby being used to quickly and easily rotate the nut into the threading. In this way, the nut is placed in a position such that subsequently only a fine adjustment of the location of the nut is required.

2 DK 2002 00164 U3

Furthermore, it is possible to advance several nuts on the threaded rod at a time when there is only a small distance between them, and, of course, together they must not have a longer axial extension than the fictional surface.

The friction surface may be made of various materials, but in a preferred embodiment it is made of a durable rubber material.

With the production, a significantly lower mounting time of threaded nuts is obtained and the installer is spared from countless monotonous movements.

A particularly current design of a drill cartridge with elastic friction surface according to the invention is that the friction surface is constituted by an elastic and interchangeable friction sleeve, the surface being with friction means.

The cuff is typically made of rubber and with a tubular shape. In this way, because of its elasticity, the friction sleeve can be mounted on a "plain" drill cartridge, which is manufactured in sizes such that it can be mounted on ordinary metal or hard plastic drill cartridges.

These friction means may be designed so that the friction sleeve friction means of the friction sleeve are constituted by rib shaped projections which preferably extend axially relative to the axial center line of the friction sleeve and perpendicular to the outer surface of the friction sleeve.

Alternatively, the friction means of the friction sleeve may be punctured projections which preferably extend perpendicular to the surface of the friction sleeve.

And finally, according to the invention, a drilling cartridge may have fictitious means consisting of a combination of rib and dot projections.

3 DK 2002 00164 U3

With these friction means, a friction sleeve is obtained which ensures optimal transfer of the rotary movement from drill cartridge to nut, while retaining the original function of the drill cartridge, namely being able to hold a drill bit or screw bit. Thus, the friction sleeve is not only with an outer friction surface but also with an inner friction surface. This inner friction can be achieved by the elasticity of the cuff - it clings to the drill cartridge, and alternatively the cuff may be with internal projections or the like. Of course, if the drill cartridge has a tapered exterior, the fiction cuff can be made with a similar tapered shape, unless the built-in elasticity can compensate for this.

The invention will now be described with reference to the accompanying drawings which show a preferred embodiment of a fiction sleeve for a drill cartridge according to the invention, wherein:

FIG. 1 shows a drill / screwdriver with friction sleeve, and FIG. 2 shows a fiction cuff seen on the ffa side.

In FIG. 1 shows a drill / screwdriver 2 with a drill cartridge 4, mounted with fiction means 6.1 substantially parallel to the axis of rotation of the drill / screwdriver, a threaded rod 8 with a plain hexagonal nut 10. It can be seen from the figure that the friction means 6 are in contact with the nut 10 , thereby passing it to the threaded rod 8. The type of drill cartridge 4 shown with fiction means 6 is a loose tubular friction sleeve 12 which is mounted on a drill cartridge 4 of the type for which no tools are used for tightening and loosening. The friction sleeve 12 is retained by its own clamping force about the drill cartridge 4, which on this type of machine often has a hard plastic surface. Furthermore, it can be seen from FIG. 1, that the original function of the drill cartridge is retained, in which the jaws 14 of the drill cartridge are provided a screw bit 16. To screw a nut 10 on a threaded rod 8 with ordinary right-hand thread, the drill / screw machine 2 is set to run in the left-hand direction, and opposite if the nut 10 must be unscrewed.

FIG. 2 shows a fiction sleeve 12, of the type intended for mounting on a conventional drill cartridge 4, seen ffa side. As seen in FIG. 2, this friction sleeve 12 4 is divided into two annular regions 18, 20, one region 18 having axially oriented rib shaped projections 22, and another region 20 having point-shaped projections 24. With a friction sleeve 12 as shown, option to select precisely the friction means 6 that are best suited to the current nut size and / or configuration.

5 It is of course possible to have a different design and division of friction means 6.

DK 2002 00164 U3

UTILITY MODEL REQUIREMENTS

1. Drill cartridge for mounting on a drill / screwdriver, wherein the drill cartridge is of the types that are tensioned by - or without - the use of tools, characterized in that the drill cartridge has at least one circumferential part area with an elastic friction surface.

Drill cartridge according to claim 1, characterized in that the friction surface is constituted by an elastic and interchangeable friction sleeve, the surface being with friction means.

Drill cartridge according to claim 2, characterized in that the frictional means of the friction sleeve are constituted by rib-shaped projections which preferably extend axially with respect to the axial center line of the friction sleeve and perpendicular to the outer surface of the friction sleeve.

Drill cartridge according to claim 2, characterized in that the frictional means of the friction sleeve are constituted by punctured projections which preferably extend perpendicular to the outer surface of the friction sleeve.

Drill cartridge according to any one of claims 1-4, characterized in that 20 friction means comprise a combination of rib and point-shaped projections.

DK 2002 00164 U3

DK 2002 00164 U3