JP2018517570A - Wheel nut wrench for vehicles - Google Patents

Abstract

The present invention relates to a wheel nut wrench for a vehicle, and more specifically, a “−”-shaped wheel nut wrench is formed by using a drawn steel pipe system, thereby reducing the number of manufacturing steps and improving the workability. The present invention relates to a wheel nut wrench for a vehicle capable of improving ease of operation and efficiency by easily performing loosening and tightening work of a wheel nut with a small force while achieving compatibility.
In the vehicle wheel nut wrench according to the present invention, while manufacturing the pipe-shaped wheel nut wrench 100, the socket fitting groove 110 is provided at one end portion, and the handle portion 200 is fitted at the other end portion. The socket fitting groove 110 is formed to have a hexagonal shape, and the socket fitting groove 110 has either a rectangular shape or a hexagonal shape. The socket nut 111 with the center punched into the shape is fitted.
Further, the wheel nut wrench 100 includes hexagonal socket fitting grooves 110 at both ends, and engagement holes 120 into which the handle 200 is fitted are formed on both sides. The grip part 101 is formed on the outer peripheral surface while a circular or hexagonal pipe is manufactured in a “−” shape by the drawn steel pipe method.
Furthermore, 2 to 6 through holes 102 are formed at predetermined intervals on the outer peripheral surface of the side end of the wheel nut wrench 100, and the through hole is formed on the outer peripheral surface of the socket nut 111 that fits into the socket fitting groove 110. A tightening hole 112 is formed so as to correspond to the hole 102, and the fixing member 130 disposed outside the wheel nut wrench 100 passes through the through hole 102 and is tightened to the tightening hole 112 to fit the socket. The socket nut 111 fitted in the groove 110 is engaged.

[Selection] Figure 2

Description

The present invention relates to a wheel nut wrench for a vehicle, and more specifically, a “−”-shaped wheel nut wrench is formed by using a drawn steel pipe system, thereby reducing the number of manufacturing steps and improving the workability. The present invention relates to a wheel nut wrench for a vehicle capable of improving ease of operation and efficiency by easily performing loosening and tightening work of a wheel nut with a small force while achieving compatibility.

Generally, a tire replacement tool set is provided in a trunk or the like in preparation for a situation where a tire is punctured during operation of the vehicle, and the tool set is provided by a jack assembly, a jack handle, a wheel nut wrench, a spanner, a fryer, etc. It is configured.

The wheel nut wrench 10 is a tool used to release a nut fastened to a wheel hub when exchanging tires. A wheel nut wrench used in a commercial vehicle has a predetermined length as shown in FIG. The outer peripheral surfaces of both end portions 20 and 30 have a circular shape, and the inner peripheral surfaces 22 and 32 have a concave quadrangular shape 22 or a hexagonal shape 32 following the shape of the wheel nut of the tire.

Further, through holes 40 having a predetermined diameter are respectively formed at predetermined positions in the inner direction from both ends 20 and 30 so that rod-shaped levers (lever) can be selectively attached.

However, as described above, a conventional wheel nut wrench having square or hexagonal wheel nuts on both sides of a steel pipe is a cutting step of cutting a socket into a predetermined length as disclosed in Patent Document 1. And pressing the socket after placing it on the forming frame to form a nut portion therein, a heat treatment process for heating and cooling the socket, and cutting a steel pipe engaged with the socket to a required length. And a cutting step, and further using a method further including a joining step of joining the socket and the steel pipe by welding.

As described above, a conventional wheel nut wrench for a vehicle is manufactured not only by a complicated process, but also has a very low manufacturing efficiency. Since the load (weight) is very large, it is inconvenient to use and store.
In addition, since the metal material required for the steel pipe and the socket increases, the production cost and the manufacturing cost increase, and there is a problem that a safety accident occurs because the welded part is damaged.

Korean Patent Publication No. 10-2009-0099426 (publication date: September 22, 2009)

The present invention has been devised to solve the above-described problems of the prior art, and its purpose is to manufacture a socket groove on the inner peripheral surface at the same time by manufacturing it with an inner diameter drawn pipe, For a vehicle in which a handle portion is attached to the side end of the wheel nut wrench in a cross shape and the wheel nut wrench can be easily rotated using the handle portion to easily remove or attach the wheel nut for the vehicle. It is to provide a wheel nut wrench.

Another object of the present invention is to form a polygonal socket groove on the inner peripheral surfaces of both sides of the wheel nut wrench, and provide an engagement hole for attaching a handle portion on one side of the socket groove. Easily work by moving the handle part that fits into the fitting hole as the wheel nut wrench rotates and tightening and tightening the vehicle wheel nut without removing the wheel nut wrench simply by moving the handle part. It is another object of the present invention to provide a wheel nut wrench for a vehicle that can improve speediness.

Still another object of the present invention is applied to a wheel nut having various sizes and shapes by removably attaching a hexagonal or rectangular socket nut assembled to the inner peripheral surface of the wheel nut wrench to the wheel nut wrench. It is providing the wheel nut wrench for vehicles which can improve versatility by this.

The wheel nut wrench for a vehicle according to the present invention devised to solve the technical problems as described above is manufactured by manufacturing the pipe-shaped wheel nut wrench 100 while the socket fitting groove 110 at one end. And the engagement hole 120 into which the handle portion 200 is fitted is integrally formed at the other end. The socket fitting groove 110 is formed to have a hexagonal shape,
A socket nut 111 whose center is punched into one of a square shape and a hexagonal shape is fitted into the socket fitting groove 110.

Further, the wheel nut wrench 100 includes hexagonal socket fitting grooves 110 at both ends, and engagement holes 120 into which the handle 200 is fitted are formed on both sides, respectively. The grip part 101 is formed on the outer peripheral surface while a circular or hexagonal pipe is manufactured in a “−” shape by a drawn steel pipe method.

Furthermore, 2 to 6 through holes 102 are formed at predetermined intervals on the outer peripheral surface of the side end of the wheel nut wrench 100, and the through hole is formed on the outer peripheral surface of the socket nut 111 that fits into the socket fitting groove 110. A tightening hole 112 is formed so as to correspond to the hole 102, and the fixing member 130 disposed outside the wheel nut wrench 100 passes through the through hole 102 and is tightened to the tightening hole 112 to fit the socket. The socket nut 111 fitted in the groove 110 is engaged.

In addition, the socket nut 111 is formed with a small-diameter head 115 that protrudes so as to bend while decreasing in diameter along the other direction of the body that fits into the socket fitting groove 110. A rectangular or hexagonal nut fitting groove 115a is further formed at the center of the wheel nut wrench 100, and the wheel nut wrench 100 is manufactured at one end while being manufactured to have a hexagonal outer peripheral surface shape and an inner peripheral surface shape. A fixed head 150 having a hexagonal fitting portion 151 fitted in the socket fitting groove 110 and a hexagonal or square head nut fitting groove 152 formed on the inner peripheral surface of the other end is provided. A head engaging hole 153 is further formed in which the handle portion 200 is attached to the fixed head 150 while being engaged, and both side portions of the handle portion 200 are formed. The stopper 210 having a ball member to move up and down by the elasticity of the elastic member is formed so as to protrude outward.

According to the present invention as described above, a wheel nut wrench is manufactured by drawing a vehicle wheel nut wrench into a "-"-shaped pipe and simultaneously arranging a socket fitting groove on the inner peripheral surface. The production efficiency can be improved by greatly simplifying the process compared to the conventional method.

In addition, it is possible to increase the competitiveness of the product by replacing the round bar, which has been expensive in the past, with an inexpensive pipe, thereby significantly reducing raw materials and manufacturing costs compared to the conventional case.
Furthermore, the weight of the wheel nut wrench is reduced to improve the usability and ease of storage, and the socket nut is replaced according to the type of the nut, so that the usability can be maximized.

It is a front view of the conventional wheel nut wrench. It is a perspective view which shows the structure of the wheel nut wrench which concerns on this invention. It is sectional drawing of the structure of the wheel nut wrench which concerns on this invention. It is a perspective view showing one embodiment of a wheel nut wrench concerning the present invention. It is a perspective view which shows other embodiment of the wheel nut wrench which concerns on this invention. It is sectional drawing of the structure of embodiment of FIG.

The wheel nut wrench for a vehicle according to the present invention is formed by forming a “−”-shaped wheel nut wrench using a drawn steel pipe system, while reducing both the number of manufacturing steps and improving the ease of work. It was devised in order to improve the ease of operation and efficiency by easily performing the loosening and tightening of the wheel nut with a small force.

Hereinafter, a wheel nut wrench according to the present invention will be described in detail with reference to the accompanying drawings. The features of the wheel nut wrench according to the present invention will become apparent from the embodiments described in detail in conjunction with the accompanying drawings.

While the invention is amenable to various modifications and alternative forms, embodiments thereof will be described in detail herein. However, this should not be construed as limiting the invention to the particular forms disclosed, but should be understood to cover any modifications, equivalents or alternatives that fall within the spirit and scope of the invention. .

FIG. 2 is an exploded perspective view showing a wheel nut wrench according to the present invention, and FIG. 3 is a sectional view in a combined state. Referring to FIG. 1, a wheel nut wrench 100 according to the present invention is manufactured by a “−”-shaped pipe by a drawing steel pipe method. The drawing steel pipe is formed by bending a steel plate. It is not a joint made by joining seams, but a hollow tube made from a steel ingot using a roll and using a core rod. The drawn steel pipe method is a method used to manufacture a seamless steel pipe.

As described above, the wheel nut wrench 100 according to the present invention has a hexagonal socket fitting groove 110 inside, and the outer shape is circular or hexagonal. A scale-shaped product is produced.

That is, in the wheel nut wrench 100 manufactured by drawing, the socket fitting groove 110 is integrally provided on the inner periphery, and the engagement hole 120 in which the handle portion 200 is fitted on one side or both sides is further formed. Is done.

In addition, the gripper 101 is formed on the outer peripheral surface of the wheel nut wrench 100 so as to be easily gripped by a user using a knurling process. Pattern and shading effects are produced.

Further, two to six through holes 102 are formed at predetermined intervals on the outer peripheral surface of the side end of the wheel nut wrench 100. The through holes 102 are formed from the engagement holes 120 to which the handle portion 200 is attached. Also, it is preferable to form near the tip.

The wheel nut wrench 100 formed in this manner is disposed at the other end after fitting the hexagonal socket fitting groove 110 formed at one end to the hexagonal wheel nut. The handle portion 200 is attached to the engaging hole 120 and the handle portion 200 is rotated forward or reverse, whereby the wheel nut is tightened or loosened.

In addition, a hexagonal or square nut and bolt smaller than the socket fitting groove 110 are tightened or loosened by a separate socket nut 111 fitted into the socket fitting groove 110.

The socket nut 111 has a central portion punched into one of a quadrangular shape and a hexagonal shape, and 2 to 6 pieces formed on the outer peripheral surface of the side end of the wheel nut wrench 100 on the outer peripheral surface. A fastening hole 112 corresponding to the through hole 102 is formed, and after the socket nut 111 is fitted into the socket fitting groove 110, the fixing member 130 is fastened from the outside of the wheel nut wrench 100 and bound together.

At this time, as shown in FIG. 4, the socket nut 111 has a small-diameter head 115 protruding so as to bend while decreasing in diameter as it proceeds from the body fitted in the socket fitting groove 110 toward the outside. It is also possible to form a rectangular or hexagonal nut fitting groove 115a at the center of the small-diameter head 115.

That is, in the narrow space where the wheel nut wrench 100 having the socket nut 111 cannot be fitted, the small diameter head 115 is attached to the socket fitting groove 110 of the wheel nut wrench 100, and the protruding portion of the small diameter head 115 is narrowed in the narrow space. It is also included in the scope of the present invention to perform a tightening or loosening operation by fitting into a bolt or a nut disposed in the box.

Further, as an example of use of the present invention, a groove is further formed in the inner diameter direction at a distance corresponding to the fitting of the socket nut 111 from one end of the wheel nut wrench 100, and the socket nut 111 is fitted. It is also possible to bind the socket nut 111 attached to the socket fitting groove 110 using the fixing member 130 after preventing the inside from moving in the above state.

The concave grooves formed on the circular and hexagonal outer surfaces of the wheel nut wrench 100 may be formed at intervals or in a ring shape, but the rigidity of the pipe-shaped wheel nut wrench may be increased. In order to maintain, two to four concave grooves may be formed at intervals to prevent excessive fitting of the socket nut 111.

At this time, the socket nut 111 is fitted into the socket fitting groove 110, and the socket nut 111 is integrally fixed by pressing (pressing) or spot welding from the outer surface of the wheel nut wrench 100. include.

A wheel nut wrench for a vehicle according to another embodiment of the present invention will be described with reference to FIGS. 5 and 6. A hexagonal socket fitting groove 110 is provided at both ends of the wheel nut wrench 100, and a handle 200. Is formed on one side, and then the other socket fitting groove 110 is engaged with a fixed head 150 having a square or hexagonal head nut fitting groove 152 formed in the center. To do.

The fixed head 150 includes a hexagonal fitting portion 151 that fits into the socket fitting groove 110 of the wheel nut wrench 100, and a hexagonal or square headnut fitting groove 152 on the inner periphery of the other end. Is formed, and a head engagement hole 153 is further formed in the head portion to which the handle portion 200 is attached in a cross shape.

Further, the fitting portion 151 of the fixed head 150 is further formed with head tightening holes 151 a corresponding to 2 to 6 through holes 102 formed on the outer peripheral surface of the side end of the wheel nut wrench 100, so that the socket It is also preferable that after the fitting portion 151 is fitted in the fitting groove 110, the fixing member 130 is tightened from the outside of the wheel nut wrench 100 to firmly bind the wheel nut wrench 100 and the fixed head 150 to each other.

Here, the engagement hole 120 may be formed to have a circular shape or a polygonal shape, but it is preferable that a handle portion 200 that is formed in a circular shape and is a circular rod is attached. It is preferable to further provide a stopper 210 for preventing the handle portion from being pulled out on one side to be attached.

The stopper 210 of the handle part 200 forms a ball groove (not shown) on one side of the handle part 200, and a resilient member (not shown) and a ball member (not shown) are formed inside the ball groove. Although it fits in this order, it attaches so that the said ball member is not pulled out outside and can be fitted with elasticity in the direction of a ball groove.

For this reason, when attaching the handle part 200 to the engagement hole 120 of the wheel nut wrench 100, when the ball member is pushed and fitted, the ball member protrudes after passing through the cross section of the engagement hole 120 and the handle part 200 is removed. It becomes difficult to be done.

Further, in the state where the engagement hole 120 of the wheel nut wrench 100 and the head engagement hole 153 of the fixed head 150 are formed, stoppers 210 are formed on both sides of the handle part 200, and the handle part 200 is attached. In this state, the wheel nut wrench 100 is rotated by being moved along the engagement hole, thereby improving usability.

As described above, the above-described embodiment is merely an optimal embodiment of the present invention, and the present invention is not limited to the above-described embodiment. Various modifications are possible without departing from the technical idea of the present invention. It will be apparent to those skilled in the art that various modifications can be made.

Claims (8)

A pipe-shaped wheel nut wrench (100) having an engagement hole (120) in which a socket fitting groove (110) is provided at one end and a handle (200) is fitted at the other end. A wheel nut wrench for a vehicle, characterized in that is integrally formed. The socket fitting groove (110) is formed to have a hexagonal shape,
The socket nut (111) having a center punched into one of a rectangular shape and a hexagonal shape is fitted into the socket fitting groove (110). Wheel nut wrench for all vehicles. The wheel nut wrench (100) includes hexagonal socket fitting grooves (110) at both ends, and engagement holes (120) into which the handle (200) is fitted are formed on both sides. The wheel nut wrench for a vehicle according to claim 1, wherein The wheel nut wrench (100) is characterized in that a circular or hexagonal pipe is manufactured in a "-" shape by a drawn steel pipe system, and a grip portion (101) is formed on an outer peripheral surface. 2. A wheel nut wrench for a vehicle according to 1. Two to six through holes (102) are formed at predetermined intervals on the outer peripheral surface of the side end of the wheel nut wrench (100), and the socket nut (111) fitted into the socket fitting groove (110) is formed. A tightening hole (112) is formed on the outer peripheral surface so as to correspond to the through hole (102), and a fixing member (130) disposed outside the wheel nut wrench (100) is formed in the through hole (102). 2) and the socket nut (111) engaged with the socket fitting groove (110) through the fastening hole (112) and being engaged with the socket nut (111). Wheel nut wrench. The socket nut (111) is formed with a small-diameter head (115) protruding so as to bend while decreasing in diameter along the other direction of the body to be fitted into the socket fitting groove (110). The wheel nut wrench for a vehicle according to claim 2, wherein a square or hexagonal nut fitting groove (115a) is further formed in a central portion of the caliber head (115).   The wheel nut wrench (100) is manufactured to have a hexagonal outer peripheral surface shape and an inner peripheral surface shape, and a fixed head (150) having a hexagonal fitting portion (151) formed on one side. A head engagement hole (153) that engages with the wheel nut wrench (100) and a handle portion (200) is attached to the other side of the fixed head (150), and a hexagonal or rectangular shape. The wheel nut wrench for a vehicle according to claim 1, wherein the head nut fitting groove (152) is further formed. The vehicle according to claim 1, wherein a stopper (210) having a ball member that moves up and down by elasticity of an elastic member is formed on both sides of the handle (200) so as to protrude outward. Wheel nut wrench for.