TWM465249U - Nut remover - Google Patents

Description

Nut removal tool

The present invention relates to the technical field of the structure of a nut removal tool, and more particularly to a nut removal, convenient and quick nut removal tool that can make the nut disassembly.

Referring to the eighth figure, it is pointed out that in order to prevent the nut (40) from being loosened from the bolt (50), one of the same axial positioning grooves (51) is usually disposed on the circumferential surface of the bolt (50). A positioning ring (41) integrally protruding to a circumferential surface of the bolt (50) is disposed on an outer end surface of the nut (40), and the positioning ring (41) is capable of generating a positioning by an external force. The convex portion (42) is inserted into the positioning groove (51), and the mounting tool of the axle lock nut of the certificate No. M454291 acts on the positioning ring (41) to generate the positioning convex portion (42), thus utilizing the The opposite engagement of the positioning protrusion (42) and the positioning groove (51) prevents the nut (40) from rotating on the bolt (50), thereby avoiding the nut (40) from being removed by the bolt (50) The purpose of loosening. The conventional disassembly method of the nut (40) is mainly to insert the head end (61) of the driving rod (60) of a common one-word screwdriver into the positioning convex along the positioning groove (51). Between the portion (42) and the positioning groove (51), and then tapping the rear end of the handle (20) of the slotted screwdriver, so that the head end (61) penetrates the positioning protrusion (42) and the Positioning between the grooves (51), and finally applying force by the handle (20) to lift the positioning protrusion (42) upward by the head end (61), so that The deformation is disengaged from the positioning groove (51), so that the nut (40) can be unscrewed from the bolt (50).

However, the conventional method uses a flat-blade screwdriver to lift the positioning convex portion (42) of the nut (40) upward, because the upper and lower sides of the flat head end (61) of the flat-shaped screwdriver have a The front end is relatively close and has two inclined faces of considerable length, so that it can only use the intersection of the inclined surface and the peripheral surface of the driving rod (60) as a fulcrum to tilt the positioning convex portion (42) upward, and The angle formed by the inclined surface and the peripheral surface of the driving rod (60) is relatively large, so the fulcrum is far away from the positioning convex portion (42), so that the force applied to the driving arm is relatively laborious due to the long resistance arm. Moreover, when the head end (61) is interposed between the positioning protrusion (42) and the positioning groove (51) of the bolt (50), it also causes the driving rod (60) and the bolt (50). The angle between them is too small, so that the force exerted on the operation of disassembling the nut (40) is inconvenient, and the disassembly efficiency is also poor, especially when the bolt (50) exposes the part of the nut (40). When the number is short, the fulcrum far from the positioning convex portion (42) is unable to effectively form a fulcrum, which further affects the convenience and efficiency of disassembling the nut (40). . Furthermore, since the rear end of the driving rod (60) is covered by the handle (20), the material of the driving rod (60), which is generally a type of screwdriver, is mostly metal, and the handle (20) Most of the material is wood or plastic, so when the rear end (61) of the handle (20) is struck between the positioning protrusion (42) and the positioning groove (51), the driving rod (60) It is easy to produce a situation in which the handle (20) is retracted.

This creation is mainly based on solving the knowledge The use of a flat-blade screwdriver to remove the nut is inconvenient, laborious, and inefficient.

The present invention provides a nut removal tool comprising a rod body, the upper and lower sides of the front end of the rod body having a concave arc surface and a convex arc surface facing the front end, and the left and right sides of the front end portion The side system has two inclined surfaces which are relatively symmetrical and relatively close to the front end. The concave curved surface is relatively close to the front end of the convex curved surface to form an action tip, and an angle is formed between the two inclined surfaces.

The nut removal tool provided by the present invention can be used as a point of contact between the convex curved surface and the positioning groove when the action tip is inserted between the positioning convex portion of the nut and the positioning groove of the bolt. a fulcrum, which is then biased by the rear end of the rod to form a lever so that the action tip can easily lift the positioning projection of the nut, and the resistance formed by the fulcrum to the action tip The arm system is much smaller than the urging arm formed by the fulcrum to the rear end of the rod body, so that the disassembly of the nut can be made more labor-saving. In particular, the convex tip formed by the convex arc surface and the concave curved surface can be formed in an upturned state by the design of the convex curved surface, so that the positioning convex portion of the nut can be easily lifted up. Therefore, the disassembly of the nut can be made more convenient and quick. In particular, any point of the convex curved surface can be in contact with the positioning groove as a fulcrum for the positioning tip to lift the positioning convex portion of the nut, so that the action tip is inserted into the positioning convex portion and Between the positioning grooves, the convex arc surface can be in contact with the positioning groove to form a fulcrum, so that even if the bolt protrudes from the length of the nut is not long, it can form a labor-saving leverage.

(10)‧‧‧ rods

(11) ‧‧‧ concave curved surface

(12)‧‧‧ convex curved surface

(13)‧‧‧Bevel

(14) ‧ ‧ Circumference

(20)‧‧‧Handle

(30)‧‧‧Knocking pieces

(40)‧‧‧ Nuts

(41)‧‧‧ positioning ring

(42)‧‧‧ positioning convex

(50)‧‧‧ bolts

(51)‧‧‧ Positioning groove

(60) ‧‧‧Driver

(61) ‧ ‧ head end

The first picture is a three-dimensional diagram of the creation.

The second picture is a top view of the creation.

The third figure is a schematic view of the B-B section of the second figure.

The fourth figure is a schematic diagram of the three-dimensional action before the creation of the positioning groove.

The fifth figure is a schematic plan view of the present invention inserted between the positioning protrusion and the positioning groove.

The sixth figure is a schematic side view of the present invention inserted between the positioning protrusion and the positioning groove.

The seventh figure is another embodiment of the present creation.

The eighth figure is a perspective view of a conventional nut removal tool.

Referring first to the first to sixth figures, the nut removal tool of the present invention is shown to include a rod (10), a handle (20) and a striker (30). Wherein: the rod body (10) is made of a metal material and has a circular cross section, and the upper and lower side portions of the front end portion of the rod body (10) respectively have a concave curved surface facing the front end (11). And a convex curved surface (12), wherein the left and right sides of the front end portion have two inclined surfaces (13) symmetrical with respect to the front end, the concave curved surface (11) and the convex curved surface (12) The front ends are relatively close to each other to form an active tip, and an angle is formed between the two inclined faces (13).

The handle (20) covers the rear section of the rod body (10) for convenient gripping by the user.

The tapping member (30) is made of a metal material, and is disposed in the handle (20), and one end is coupled to the rear end of the rod body (10), and the other end is convexly exposed to the grip ( 20) The rear end face.

Continuing to refer to the fourth to sixth figures, it is pointed out that the action tip of the front end of the rod (10) can be inserted into the nut (40) along the positioning groove (51) of the bolt (50). Positioning the convex portion (42) below, and by tapping the rear end of the knocking member (30), the working tip portion penetrates between the positioning convex portion (42) and the positioning groove (51), Then, the force is applied downward from the handle (20), and the contact point of the convex curved surface (12) and the positioning groove (51) is used as a fulcrum to form a lever, so that the action tip can be easily The positioning protrusion (42) is tilted upward to be disengaged from the positioning groove (51), so that the nut (40) can be rotated on the bolt (50) for disassembly purposes.

Since any point of the convex arc surface (12) of the present invention can be in contact with the positioning groove (51) to form a point, the resistance arm formed by the fulcrum to the action tip is much smaller than the fulcrum to the rod body. (10) The force-applying arm formed at the rear end can generate a relatively labor-saving lever to make the disassembly of the nut (40) more labor-saving. In particular, the convex tip formed by the convex curved surface (12) and the concave curved surface (11) can be formed in an upturned state by the design of the convex curved surface (12), so that the function can be easily The positioning protrusion (42) of the nut (40) is tilted, so that the disassembly of the nut (40) is more convenient and quick. In particular, any point of the convex curved surface (12) can serve as a fulcrum for the positioning tip to lift the positioning convex portion (42) of the nut (40), so that the action tip can be inserted into the nut (40) between the positioning convex portion (42) and the positioning groove (51), the convex curved surface (12) can be brought into contact with the positioning groove (51) to form a fulcrum, so that even if the bolt (50) protrudes from the length of the nut (40), it can form a labor-saving leverage.

Please refer to the seventh figure, which is another embodiment of the present invention, which does not include the handle (20) and the knocking member (30) of the above embodiment, and the rod body (10) is rear. The end portion can be inserted into a drive joint (not shown) or a tool head can be separated from the drive joint. Wherein, the cross section of the rod body (10) is hexagonal, and the front end portion of the rod body (10) is cylindrical, and the upper and lower sides of the front end portion of the cylindrical body are respectively relatively close to the front end. a concave curved surface (11) and a convex curved surface (12), and the left and right sides of the front end portion have two inclined surfaces (13) symmetrical relative to the front end, the concave curved surface (11) and The front end of the convex curved surface (12) is relatively close to form a working tip, and an angle is formed between the two inclined surfaces (13). The circumferential surface of the rod body (10) has a ring groove (14) near the rear end, so that the rear end portion of the rod body (10) can be inserted into the drive joint or separated by the drive joint. The annular groove (14) is a standard structure.

(10)‧‧‧ rods

(11) ‧‧‧ concave curved surface

(12)‧‧‧ convex curved surface

(13)‧‧‧Bevel

(20)‧‧‧Handle

Claims (7)

A nut removal tool includes: a rod body; the upper and lower sides of the front end portion have a concave arc surface and a convex arc surface facing the front end, and the left and right sides of the front end portion are symmetrical and The two inclined surfaces are relatively close to the front end, and the concave curved surface is relatively close to the front end of the convex curved surface to form an active tip portion, and an angle is formed between the two inclined surfaces. The nut removal tool of claim 1, further comprising a handle, wherein the handle covers the rear portion of the shaft. The nut removal tool of claim 2, further comprising a striking member, wherein the striking member is disposed in the grip, and one end is coupled to the rear end of the rod body, and the other end protrudes the grip The rear end face. The nut removal tool of claim 3, wherein the shaft has a circular cross section. The nut removal tool of claim 3, wherein the rod body and the knocking member are made of a metal material. The nut removal tool of claim 1, wherein the rod system is a tool head, and the rear end portion of the rod body can be inserted into or separated from the drive joint. The nut removal tool according to claim 6, wherein the cross section of the rod body is hexagonal, and the front end portion of the rod body is cylindrical, and the circumferential surface of the rod body has a ring groove near the rear end. The rear end portion of the rod body can be inserted into or separated from the drive joint.