Patent Application
20210291330
The present invention relates to a tool head with an anti-slip structure, and more particularly to a tool head with an anti-slip structure capable of being quickly and easily removed from the hole of a removal tool by increasing friction with a high friction coefficient thereof.
Before using a removal tool such as a socket or a ratchet wrench that requires the installment of a tool head, the tool head must be snapped into the hole of the removal tool, and it needs to be removed from the hole after use. However, in order to make conventional removal tools remain stable and avoid the tool head from falling off upon removal, the tool head is combined by means of tight engagement or strong magnetic adsorption, which causes the tool head to be difficultly pulled out, or even completely stuck in the hole after use.
The main object of the present invention is to provide a tool head with an anti-slip structure, increasing friction through the anti-slip structure of a high friction coefficient, and allowing users to quickly and easily remove the tool head from the hole of a removal tool with the recessed design of a groove segment.
To achieve the above object, the present invention proposes a tool head with an anti-slip structure, including: a combination segment, formed on one side of the tool head; a driving segment, formed on another side of the tool head away from the combination segment, and a driving portion configured on one end of the driving segment away from the combination segment; a groove segment, formed on the tool head and positioned between the combination segment and driving segment; an anti-slip structure, configured on the tool head and positioned between the groove segment and driving segment, and a diameter of the groove segment is smaller than diameters of the anti-slip structure and combination segment, respectively; a plurality of convex portions, each thereof formed on the anti-slip structure; a plurality of concave portions, each thereof formed on the anti-slip structure and enclosed by the convex portions; and an abutting surface, defined on one side of the groove segment adjacent to the anti-slip structure.
With the above structure, the tool head of the present invention can be installed in the hole of a removal tool when a bolt wants to be removed, and the driving portion of the driving segment is matched and engaged with the bolt; the removal tool is then rotated to allow the tool head to remove the bolt. When the tool head wants to be taken out from the hole after the removal of the bolt, a user's fingers are attached to and hold the anti-slip structure and groove segment. At this time, the surface of the anti-slip structure becomes coarse because of the convex portions and concave portions thereof; high roughness means high friction coefficient so that the friction between the fingers and anti-slip structure is increased.
In addition, the diameter of the groove portion is smaller than the ones of the anti-slip structure and combination segment on the two sides thereof, allowing the fingers to be placed on the groove segment, and further abutted to the abutting surface to generate a support effect during drawing out the tool head. With the cooperation between the anti-slip structure and groove segment, the friction can be increased during the removal of the tool head, thereby allowing the tool head to be easily and quickly removed out of the hole of the removal tool.
With the above the technology, the present invention can overcome the disadvantages of the prior art that a tool head is difficult to be drawn out of the hole of a removal tool and even stuck in the hole after use.
Referring to
Furthermore, each of the convex portions 141 is a rhomboid as an example, and the concave portions 142 are lines that cross each other to make them look like a net. In addition, the driving portion 121 is hexagonal as an example, and the combination segment 11 may also be hexagonal; the abutting surface 131 is a circular arc surface as an example.
With the corresponding cooperation of the above structure of the present invention, high friction coefficient can be used to increase friction force upon the removal of the tool head 1 from the removal tool 2, and further to allow a user to quickly and easily remove the tool head 1 out of the hole of the removal tool 2. The detailed explanation will be described as the following.
Referring to
After the removal of the bolt is completed, a user's fingers may first pinch the anti-slip structure 14 and groove section 13 of the tool head 1 when the tool head 1 wants to be taken out from the hole of the removal tool 2. At this time, the fingers can be tightly attached to the groove segment 13 since the diameter of the groove section 13 is smaller than the ones of the anti-slip structure 14 and combination segment 11, respectively, and in the meantime, with the cooperation of the convex portions 141 and concave portions 142 of the anti-slip structure 14, the roughness of the anti-slip structure 14 can be increased to allow the anti-slip structure 14 to have a higher friction coefficient to increase the friction force acted on the surfaces of the fingers by the anti-slip structure 14. In addition, when a force is acted outward to pull out the tool head 1 from the removal tool 2, the fingers placed on the groove segment 13 will abut on the abutting surface 131, thereby allowing the abutting surface to be used as a support surface upon the pulling Therefore, the user can then easily and quickly remove the tool head 1 out of the hole of the removal tool 2.
Friction is an essential attribute of two objects with relative motion or relative motion tendency; when an object and another object move along the tangential direction of the contact surface or have a tendency to move relative to each other, a force that hinders their relative movement is formed between the contact surfaces of the two objects, that is, friction.
The friction coefficient is the ratio of the friction force to the forward pressure between two solid surfaces. The coefficient of friction is determined by factors such as the nature and roughness of the sliding surface, and has nothing to do with the size of the contact area. The rougher the sliding surface, the larger the coefficient of friction. Therefore, the convex portions 141 and concave portions 142 on the anti-slip structure 14 allow the surface of the anti-slip structure 14 itself to be coarse and have a higher friction coefficient; when the fingers are attached to the anti-slip structure 14 and a force is to be applied, the anti-slip structure 14 presents a network of unevenness, which will generate a large amount of friction with the surfaces of the fingers so that a user does not need to exert an excessive force and uses the friction generated between the fingers and anti-slip structure 14, and the tool head 1 can then be removed from the removal tool 2, achieving a quick and easy tool head removal effect.
Referring to
Preferably, the modified portion 111a is a circular corner, for example, and the notch 112a is a triangular shape as an example; the magnetic suction portion 113a and magnetic suction element 21a respectively are a magnetic as an example; gradual contraction portion 122a may be curvedly contracted from the anti-slip structure 14a toward the driving portion 121a; the number of the engagement portions 22a is two, for example.
Whereby, with the structure of the modified portion 111a, the acute angle of the tool head 1a can be modified to avoid a user's fingers being cut by the tool head 1a when exerting a force on the tool head 1a to pull it out of the hole of the removal tool 2a.
With the structure of notches 112a in corresponding engagement with the engagement portions 22a, the combination of the tool head 1a with the removal tool 2a can be tighter to avoid the tool head 1a easily falling off the removal tool 2a during use.
With the structure of the magnetic suction portion 113a and magnetic suction element 21a being magnetically attracted to each other, the combination of the tool head 1a with the removal tool 2a can also be tighter to avoid the tool head 1a easily falling off the removal tool 2a during use.
In addition, since the diameter of the driving segment 12a is smaller than the one of the anti-slip structure 14a, the connection of the driving segment 12a with the anti-slip structure 14a has a higher thickness drop; if the force exerted on the tool head 1a is larger, the driving segment 12a is easy to be broken. With the structure of the gradual contraction portion 122a, the connection of the driving segment 12a with the anti-slip structure 14a will not have an excessive thickness drop; the connection is gradually contracted from the anti-slip structure 14a toward the driving portion 12a to increase the stability of the connection, and further to avoid an excessive force breaking the driving portion 12a during operation.
Referring to
In addition, the groove segment 13b, in the embodiment, further has at least one indicating portion 132b, which is text, graphics or color for the indication of the specification of the tool head 1b.
Therefore, the present invention has the following advantages over the prior art:
