JP2009214282A - Auxiliary tool for pressurizing cross wrench - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an auxiliary tool for a cross wrench capable of smoothly loosening and tightening a wheel nut on an automobile by connecting to a cross wrench when the wheel nut is too tightened or when moderate tightening is not gained because of low strength. <P>SOLUTION: A body 1 of the auxiliary tool includes two metal rods of equal weight and material to a cross wrench. Both edges of the two metal rods of the body 1 are mounted with wrench connection parts 2 having hexagonal heads molded for inserting into the wrench parts of the cross wrench. The inside of each of the wrench connection parts 2 is provided with a footing 3 for putting a foot on and an operation part 4 for the turn with a hand. The body 1 is bent in the opposite directions on the both edges from the inside edges of the operation parts to form the same obtuse angles. Therefore, the both edges of the straight rods are bent to form such a shape that the portions between the operation parts 4 are connected in parallel. The auxiliary tool for a cross wrench is connected to a cross wrench as necessary. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention is a cross wrench auxiliary device that can easily apply the necessary force when a wheel nut that has become too tight and difficult to move is removed, or when a woman or an elderly person has to change tires.

  In the case of troubles during conventional driving or when changing tires on their own, a cross wrench was often placed on the car and used to attach or remove the wheel nuts.

This had the following problems.
The cross wrench is cheap and convenient, but if the wheel nut is too hard and tightened, it is often not possible to loosen it by a weak old man or woman. Also, when tightening, proper tightening is often not obtained. Although there are power tools, etc., they are expensive and are not suitable for the elderly and women who are often used only in emergencies.

The main body [1] has 17-21 and 19-23 size metal rods having hexagonal wrench joints [2] that fit the adjacent wrench parts of the cross wrench on both sides, The wrench joint [2] is provided with a foothold [3] for hanging a leg and an operation part [4] for turning by hand. From the inner end of each operation part, the main body [1] is bent at the same obtuse angle opposite to both ends, and both ends of the straight bar are bent, and the operation part [4] and subsequent parts are connected in parallel.
The present invention is a cross-wrench assisting tool having the above-described configuration.

  Connect a cross wrench to the wheel nut, insert the appropriate size auxiliary tools into the wrench on both sides, and squeeze both operation parts, or hold one of them, put your foot on the other auxiliary tool foot, and pull By depressing the wheel nut, the wheel nut turns easily even if it is powerless. When it is easy to turn, you can remove the auxiliary tool and remove it only with the cross wrench. When tightening, tighten with a cross wrench. If the auxiliary equipment reaches the ground and does not turn, turn it over. When tightening is hard, or when you want to tighten it tightly, by attaching it when necessary, you can operate without excessive load even if it is non-forced by using the principle of the lever and the force of the whole body, ensuring proper tightening it can. In addition, because of its simple structure, it can be manufactured at low cost and does not require a place.

The main body [1] is made of a material equivalent to a cross wrench, two cylinders or columns with a thickness. A regular hexagonal column having the same length as the wrench part of the cross wrench is molded on both ends to form a wrench connecting part [2]. One end is 17 mm in size, the other is 21 mm in size, and the other is 19 mm in size on one end and 23 mm in size on the other. A regular hexagonal disk about 70 mm in size is installed at the base of each hexagonal column, and a rubber is bonded to the outer extension to form a foothold [3]. The inside of each disk, the width that can be grasped with one hand, is covered with rubber and used as the operation section [4]. From the inner end of each operation part, the main body [1] is bent at the same obtuse angle opposite to both ends, and both ends of the straight bar are bent, and the operation part [4] and subsequent parts are connected in parallel.
The present invention has the above structure.
When using this, install a cross wrench on the wheel nut, and install or loosen or tighten a wrench connection of the appropriate size for each of the two wrenches that will be the handles. It is used only when it is loosened when tightening is too strong, or when proper tightening is required, and is not used when the wheel nut is turning easily. Depending on the strength of each individual, use either by holding the operating part on both sides or by stepping on the other foot while pulling one operating part. Connect only one, and operate it by grasping the cross wrench handle on the opposite side.
In order to prevent falling off, a rubber can be applied thinly like a cap on the tip of the wrench connecting part and the side surface of about 5 mm. Alternatively, a powerful magnet may be embedded at the tip of the wrench connecting portion.

It is a side view of the present invention. It is a perspective view of the wrench connection part etc. of this invention. It is a back view of the foothold and the operation part of the present invention. It is a set figure of the present invention.

Explanation of symbols

1 Main body 2 Wrench connection part 3 Footing 4 Operation part

Claims (1)

Two metal rods are used as a main body [1], and a regular hexagonal column having a length equivalent to the depth of the cross wrench is formed at each end to form a wrench connecting portion [2]. Each regular hexagonal column has one end having a 17 mm size and the other having a 21 mm size. The other has a 19 mm size at one end and a 23 mm size at the other end. A regular hexagonal board larger than 23 mm size is installed at the base of each hexagonal column to provide a foothold [3]. The inside of each disk has a width that can be grasped with one hand, and is defined as an operation section [4]. From the inner end of each operation part, the main body [1] is bent at the same obtuse angle opposite to both ends, and both ends of the straight bar are bent, and the operation part [4] and subsequent parts are connected in parallel.
A cross wrench pressurizing assisting tool having the above-described configuration.