RU185993U1 - MANUAL TOOLS FOR TURNING IN AND SCREWING THREADED FASTENERS - Google Patents

Abstract

A hand tool for screwing and unscrewing threaded fasteners, made in the form of a rod, bent in four places so that the upper and lower parts of the rod are on the same axis, and in the middle part a U-shaped lateral deflection is formed, forming a winch; it is equipped with three handles: the upper handle-stop, for which the pressure is applied in the direction of screwing / unscrewing the threaded fastener, the rod rotates inside this handle; the side handle of the handle, for which the tool rotates when screwing / unscrewing, the rod also rotates inside this handle, and the lower handle, motionlessly mounted on the rod to hold the tool during initial installation of the threaded fastener; in the lower working part, opposite the abutment handle, the tool is equipped with a hexagonal prismatic socket for installing bits or a prismatic square or hexagon for installing the socket wrench head, or a chuck. The tool is held by the lower fixed handle during initial installation and the first revolution of the threaded fastener. Further twisting and tightening of the threaded fastener is carried out by holding the tool by the upper stop handle and turning by the side handle.The proposed utility model will be in demand in cases where there is a need to screw / unscrew a large number of threaded fasteners, but it is not possible to use an electric tool. For example, seasonal assembly / disassembly of greenhouses, suburban, suburban construction, home assembly of furniture, etc. The use of this tool is not limited only to screws and self-tapping screws. It can be used for any suitable threaded fasteners. Equipped with a chuck for a bit or drill, a hand tool for screwing and unscrewing threaded fasteners can be used for drilling soft materials - aluminum, plastic, wood. Due to the availability, ease of use and reliable design, hand tools for screwing and unscrewing threaded fasteners will take their place in the tool kits of many craftsmen.

Description

The proposed utility model relates to hand tools of a wide range of applications and is used to install, screw and unscrew threaded fasteners. This tool combines the principles of the rotor and screwdriver.

The traditional hand-made rotor tool (Fig. 1) has been known since antiquity and is used in technology to the present. It serves to perform operations in which rotation with considerable effort is necessary - drilling, screwing / unscrewing threaded fasteners, etc. In general, the braid is a rod that is bent so that a lever is formed on the side of the central axis of the tool. When the rotational rotation of the rotor for this collar significantly increases the moment of rotation.

The application of the rotational principle for screwing and unscrewing threaded fasteners has been used for a long time. Some modern sets of socket wrenches-heads for industrial and domestic purposes are equipped with a curved handle in the form of a collar (Fig. 2). Patents US 1,381,889 are known. and US 1,407,860. on tools in the form of a rotor, in which the socket wrenches-heads are an integral part of the design. All these technical solutions provide both fast twisting and power tightening of threaded fasteners, and actions in the reverse sequence - their weakening and unwinding. But the initial installation of fasteners, including the first half-turn on the thread, is done by hand. Manual installation of threaded fasteners limits the use of rotary type tools for these products to two conditions: the screw is screwed into a pre-cut thread, which ensures minimal effort, and the dimensions of the fasteners allow you to twist them by hand.

There are classes of threaded fasteners - screws and screws that are screwed into the material and in the process of screwing, due to their design, form a threaded connection. Their sizes are not large, and for their initial installation and subsequent twisting requires effort. Hands cannot perform this operation. Therefore, screwdrivers of various designs are used here. They serve both for the initial installation of a threaded fastener, and for its subsequent twisting. The disadvantage of this technical solution is that the screwdriver is most effective for the initial installation of a screw or self-tapping screw. Its subsequent twisting with a screwdriver requires a relatively large investment of time and labor.

Recently, for screwing / unscrewing threaded fasteners used electric screwdrivers. When screwing / unscrewing screws and self-tapping screws, this tool develops the necessary torque due to the electric drive, which greatly facilitates the work. The disadvantages of this technical solution is that for the operation of an electric screwdriver requires power. Cordless screwdrivers that can work remotely for a while weigh up to 3 kg. All this limits the scope of application of electric screwdrivers.

The proposed utility model combines a screwdriver and a screwdriver in one tool. A hand tool for screwing and unscrewing threaded fasteners (Fig. 3), made in the form of a rod (Pos. 1), bent in four places so that the upper and lower parts of the rod are on the same axis, and P- lateral figurative bend forming a winch; it is equipped with three handles: the upper handle-stop (Pos. 2), for which the pressure is applied in the direction of screwing / unscrewing the threaded fastener, the rod rotates inside this handle; the side handle of the handle (Pos. 3), for which the tool rotates when screwing in / out, the rod also rotates inside this handle, and the lower handle (Pos. 4), motionlessly mounted on the rod to hold the tool during initial installation of the threaded fastener; in the lower working part, opposite the abutment handle, the tool is equipped with a hexagonal prismatic socket for installing bits (A), or a prismatic square or hexagon for installing the socket wrench head (B), or a chuck (C).

The tool is held by the lower fixed handle during initial installation and the first revolution of the threaded fastener (Fig. 4).

Further twisting and tightening of the threaded fastener is carried out by holding the tool by the upper stop-handle and rotating by the side handle (Fig. 5).

The proposed utility model will be in demand in cases where there is a need to screw / unscrew a large number of threaded fasteners, but it is not possible to use an electric tool. For example, seasonal assembly / disassembly of greenhouses, suburban, suburban construction, home assembly of furniture, etc. The use of this tool is not limited only to screws and self-tapping screws. It can be used for any suitable threaded fasteners. Equipped with a chuck for a bit or drill, a hand tool for screwing and unscrewing threaded fasteners can be used for drilling soft materials - aluminum, plastic, wood. Due to the availability, ease of use and reliable design, hand tools for screwing and unscrewing threaded fasteners will take their place in the tool kits of many craftsmen.

Claims (5)

1. A hand tool for screwing and unscrewing a threaded fastener made in the form of a rod bent in four places to form the upper, middle and lower working parts, with the upper and lower working parts being on the same axis, and the middle part is formed with P- laterally shaped deflection, forming a handle, while the tool is equipped with three handles: the top, which is made in the form of an abutment handle for pressing in the direction of screwing in and out of a threaded fastener, with a side handle ka for rotation of the tool when screwing and unscrewing and a lower handle fixedly mounted on the shaft to hold the tool during initial installation of the threaded fastener, while the shaft is made to rotate inside the stop-handle and the handle of the handle, the lower working part is made opposite to the handle- emphasis, while the tool is equipped with a socket for screwing and unscrewing the fastener. 2. The hand tool according to claim 1, characterized in that the socket is made in the form of a hexagonal prismatic socket for installing bits. 3. The hand tool according to claim 1, characterized in that the socket is made in the form of a prismatic square. 4. The hand tool according to claim 1, characterized in that the socket is made in the form of a hexagon for installing the head of a socket wrench. 5. The hand tool according to claim 1, characterized in that the socket is made in the form of a chuck.

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