DE29715455U1 - Multipurpose nut - Google Patents

Description

Multi-purpose wrench

The present invention relates to an improved construction of a multi-purpose wrench socket.

Because bolts and nuts come in many different sizes, different sized wrenches or sockets must be used to loosen or tighten bolts and nuts. For this reason, such tools are usually sold in groups (or sets) for tool boxes, which is a waste of both material and space. Furthermore, some wrench sizes are rarely or perhaps never used, which is also a waste of material. When a technician assembles or repairs a machine, or a mechanic performs automotive maintenance or repairs that require the removal or installation of a nut or bolt, the risk of hand injury is relatively high when searching for an appropriately sized socket or wrench. In addition, finding the right tool requires considerable time and energy.

The invention is based on the object of providing an improved screw nut that is easy to handle and avoids the need to search for a suitable wrench.

The invention provides an improved multi-purpose honeycomb socket that is portable and extremely convenient. It also takes up very little space whether stored in a toolbox or mounted on a wrench handle. By using the present invention, a variety of problems are solved and waste of material and inconvenient handling are avoided.

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The multi-purpose screw nut according to the invention has a precision design, can be manufactured easily and inexpensively and ensures that difficulties in loosening and tightening screws and nuts can be avoided.

Further advantages of the invention are explained in more detail in the following description using a preferred embodiment with the aid of the drawings. The structure, assembly, advantages and special functions of the invention are explained. They show:

Fig. 1 is an exploded view of an advantageous embodiment of the invention;

Fig. 2 shows the honeycomb structure of the open end of the screw nut according to the invention;

Fig. 3 shows a longitudinal section through an advantageous embodiment according to the invention;

Fig. 4 shows a longitudinal section through an advantageous embodiment of the invention during its application.

According to Fig. 1, the improved design of the multi-purpose screw nut according to the invention comprises a honeycomb structure in a socket 1, at the upper end of which a square hole 11 is arranged, into which a socket wrench or a connection to another tool can be inserted by the user, and the lower end 12 of which is open and hexagonal. The socket 1 accommodates a hexagonal holder 2 for guide pins 2. The holder can, for example, be inserted into the socket 1 with a press fit.

The hexagonal shaped holder 2 has a large number of round holes 22 arranged in the surface for receiving guide pins 3, 4.

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The guide pins 3, 4 inserted into the round holes 22 are each designed at their lower end as hexagonal columns 31, which taper upwards to a round rod and end in a conical tip 33. A coil spring 34 is placed on the tip 33 before the guide pins are inserted into the holes. The column cross-sections of all pins essentially fill the entire cross-section of the bush. The guide pins can be designed in several parts, for example by screwing the tip or the column onto the round rod to enable them to be held in the holder 2. If the holder is made of slightly flexible plastic, the pins can also be pushed through the plastic so that they can be held on the back of the holder due to the conical shape of the tips.

Fig. 2 shows the guide pins 3, 4 arranged in the honeycomb structure, which allow the fit of nuts and screws of different dimensions to be freely adapted in order to be able to rotate them.

Fig. 3 shows the arrangement of the centrally arranged main guide pin in a longitudinal section through the screw nut according to the invention.

Fig. 4 shows the use of the invention. When loosening or tightening a screw, the device according to the invention only has to be placed over the screw, whereupon the guide pins 3, 4, which are located above the area of the hexagonal screw surface, slide back inwards, whereby the screw is fixed by the remaining, non-displaced guide pins and can now be tightened or loosened; the same method is used to loosen a nut on a screw; here too, the guide pins 3, 4 located above the nut slide slightly inwards without otherwise affecting the normal functioning of the screw nut.

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The present invention is not intended to be limited in any way by the above description of a preferred embodiment. The invention is defined below with reference to the claims.

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Reference symbols Rifle 1 Square hole 11 open end 12 holder 2 round holes 22 Guide pin 3 hexagonal column 31 round rod 32 conical area 33 Coil spring 34 Guide pin 4

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Claims (4)

&iacgr; J ·* ■· Protection claims 1. Multi-purpose screw nut with a bushing into which a disk-shaped holder (2) with a plurality of holes (22) directed axially to the bushing (1) is inserted, whereby guide pins (3, 4) are guided through the holes (22), which can be moved axially to the bushing against the force of springs. 2. Multi-purpose screw socket according to claim 1, characterized in that the bushing (1) has a hexagonal cross-section and the guide pins (3, 4) are each designed as columns (31) with a hexagonal cross-section, which together fill essentially the entire cross-section of the bushing. 3. Multi-purpose screw nut according to claim 1 or 2, characterized in that the guide pins (3, 4) above the columns (31) are designed as round rods (32) and are surrounded by springs (34) supported on the columns, the upper ends of which abut against the holder (2) and that the rods (32) are guided through the holes (22) of the holder and have a conical tip (33) above the holder, the undersides of which are supported on the holder when the springs (34) are unloaded. 4. Multi-purpose screw socket according to one of claims 1 - 3, characterized in that the socket (1) has an outer square hole (11) for placing the socket on a socket wrench or the like. -6-