Functional bolt with double-ended rotation

Abstract

The present invention relates to a functional bolt capable of rotation at both ends, characterized by comprising: a screw body portion (110) having screw threads formed thereon; a head portion (120) formed at one end of the screw body portion (110) and having a larger diameter than that of the screw body portion (110); a first tip groove (130) formed in the screw body portion (110) into which a driver tip is inserted without rotation; and a second tip groove (140) formed in the head portion (120) into which a driver tip is inserted without rotation.

Description

Technology Field

[0001] The present invention relates to a bolt for fastening first and second fixed objects, and more specifically, to a functional bolt capable of rotating at both ends to fix the first and second fixed objects, or to apply pressure to the second fixed object while screw-coupled to the first fixed object. Background Technology

[0002] Generally, a bolt consists of a head into which a screwdriver tip is inserted without rotation, and a bolt body having a diameter smaller than the head and threads formed on its outer surface.

[0003] Meanwhile, in order to connect a pair of first fixed objects having a 'U'-shaped cross-section and inwardly bent wings at both ends, a second fixed object having a 'U'-shaped cross-section was inserted into the inner side of the pair of first fixed objects, and subsequently, a bolt was fastened to a screw hole formed in the bottom of the first fixed object after passing through a through hole formed in the bottom of the second fixed object.

[0004] However, in order to connect a pair of first fixed objects to second fixed objects in this manner, the worker must insert a bolt into the through hole formed in the second fixed object, align the screw holes formed in the pair of first fixed objects, and then rotate the bolt; however, there was a problem in that a significant amount of time was required to combine the first and second fixed objects if the through hole of the first fixed object was not clearly visible during this process. The problem to be solved

[0005] The present invention was created to solve the above-mentioned problems and aims to provide a functional bolt capable of rotating at both ends, which allows for easy assembly of a pair of first fixed objects having a 'U'-shaped cross-section and wings bent inward at both ends, and a second fixed object having a 'U'-shaped cross-section.

[0006] Another purpose of the present invention is to provide a functional bolt capable of rotation at both ends that prevents loosening even when vibration is applied to the first and second fixed objects assembled. means of solving the problem

[0007] To achieve the above objective, the functional bolt capable of rotation at both ends according to the present invention comprises: a screw body portion (110) having screw threads formed thereon; a head portion (120) formed at one end of the screw body portion (110) and having a larger diameter than the screw body portion (110); a first tip groove (130) formed in the screw body portion (110) into which a driver tip is inserted without rotation; and a second tip groove (140) formed in the head portion (120) into which a driver tip is inserted without rotation.

[0008] In the present invention, the head portion (120) includes a friction protrusion portion that protrudes from the upper surface of the head portion (120) to increase the frictional force with the object to be fixed and in close contact.

[0009] In the present invention, the friction protrusions are a plurality of triangular pyramid-shaped protrusions formed symmetrically on the surface of the head portion (120) with respect to the second tip groove (140).

[0010] In the present invention, the friction protrusions are a plurality of protrusions having pointed cross-sections that are formed symmetrically on the surface of the head portion (120) with respect to the second tip groove (140) and arranged in an elongated direction toward the center of the head portion (120).

[0011] In the present invention, the friction protrusions are a plurality of protrusions having pointed cross-sections that are formed symmetrically on the surface of the head portion (120) with respect to the second tip groove (140) and arranged in a long circumferential direction. Effects of the invention

[0012] In this way, according to the present invention, by including a first tip groove (130) formed in a screw body part (110) having screw threads and a second tip groove (140) formed in a head part (120), the screw body part can be temporarily assembled to the screw hole (310) of the second fixed object by rotating the second tip groove (140), and the first fixed object (200) (200') and the second fixed object (300) can be connected by rotating the first tip groove (130) of the screw body part (110) that penetrates the screw hole (310) so that the head part (120) presses the bottom of the first fixed object (200) (200').

[0013] In addition, by forming friction protrusions (151)(152)(153) on the head portion (120), even if vibration or impact is applied to a pair of first fixed objects (200)(200') and second fixed objects (300), the functional bolt (100) is prevented from loosening, thereby ensuring stability. Brief explanation of the drawing

[0014] FIG. 1 is a perspective view of a functional bolt capable of rotating at both ends according to the present invention. FIG. 2 is a bottom perspective view of the functional bolt of FIG. 1, a perspective view for explaining a first embodiment of the friction protrusion portion, FIG. 3 is a bottom perspective view of the functional bolt of FIG. 1, a perspective view for explaining a second embodiment of the friction protrusion portion, FIG. 4 is a bottom perspective view of the functional bolt of FIG. 1, a perspective view for explaining a third embodiment of the friction protrusion portion, FIG. 5 is a perspective view for explaining that a pair of first fixed objects are connected via a second fixed object using the functional bolt of FIG. 1. FIG. 6 is a drawing for explaining that a functional bolt of FIG. 1 is assembled to a second fixed object for connecting a first fixed object of FIG. 5. FIG. 7 is a cross-sectional view along line VII-VII of FIG. 5. Specific details for implementing the invention

[0015] Hereinafter, a functional bolt capable of rotating at both ends according to the present invention will be described in detail with reference to the attached drawings.

[0016] In the following, terms designated as "upper" or "upper" may include not only those directly above in contact but also those above non-contact. Terms such as "first," "second," etc., may be used to describe various components, but the components should not be limited by these terms. Terms are used solely for the purpose of distinguishing one component from another. A singular expression includes a plural expression unless the context clearly indicates otherwise. Furthermore, when a part is described as "comprising" a component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components. Additionally, terms such as "...part," "module," etc., as used in the specification refer to a unit that performs at least one function or operation.

[0017] FIG. 1 is a perspective view of a functional bolt capable of rotating at both ends according to the present invention, and FIG. 2 is a bottom perspective view of the functional bolt of FIG. 1.

[0018] The functional bolt (100) of the present invention capable of rotation at both ends comprises: a screw body portion (110) having screw threads formed thereon; a head portion (120) formed at one end of the screw body portion (110) and having a larger diameter than the screw body portion (110); a first tip groove (130) formed in the screw body portion (110) into which a driver tip is inserted without rotation; a second tip groove (140) formed in the head portion (120) into which a driver tip is inserted without rotation; and a friction protrusion portion protruding from the upper surface of the head portion (120) to increase frictional force with a fixed object that is in close contact.

[0019] The first tip groove (130) and the second tip groove (140) have a shape in which a driver tip (not shown) is inserted without rotation, and, for example, the cross-section can be in the shape of a + or a -.

[0020] The friction protrusions can be implemented in various forms, which are described in detail as follows.

[0021] The first embodiment (151) of the friction protrusion part is a plurality of triangular pyramid-shaped protrusions formed symmetrically on the surface of the head part (120) around the second tip groove (140), as shown in FIG. 2, and in this embodiment, four triangular pyramid-shaped protrusions.

[0022] The second embodiment (152) of the friction protrusion part is formed symmetrically on the surface of the head part (120) around the second tip groove (140) as shown in FIG. 3, and has a plurality of protrusions having pointed cross-sections arranged in the direction of the center of the head part (120), in this embodiment, four protrusions having pointed cross-sections.

[0023] The third embodiment (153) of the friction protrusion part is formed symmetrically on the surface of the head part (120) around the second tip groove (140) as shown in FIG. 4, and has a plurality of protrusions having pointed cross-sections arranged in a circumferential direction, and in this embodiment, has four pointed cross-sections.

[0024] This functional bolt can fix the first and second fixed objects by passing through the first fixed object and then fastening it into a screw hole formed in the second fixed object. At this time, since the functional bolt (100) can be rotated in either direction by inserting a screwdriver tip into the first tip groove (130) or the second tip groove (140), the first and second fixed objects can be easily fixed or maintained.

[0025] FIG. 5 is a perspective view illustrating that a pair of first fixed objects are connected via a second fixed object using the functional bolt of FIG. 1, FIG. 6 is a drawing illustrating that the functional bolt of FIG. 1 is assembled to a second fixed object for connecting the first fixed object of FIG. 5, and FIG. 7 is a cross-sectional view along line VII-VII of FIG. 5.

[0026] The functional bolt (100) of the present invention enables a pair of first fixed objects to be connected via a second fixed object.

[0027] As shown in FIG. 5, the first fixed object (200)(200') has a cross-section in the shape of a 'U' and has folded wings (210) formed at both ends that are bent inward, and the second fixed object (300) has a cross-section in the shape of a 'U' so that it can be fitted inwardly into the first fixed object (200)(200'). At this time, a plurality of screw holes (310), four in this embodiment, are formed on the bottom surface of the second fixed object (300), and a screw body (110) is screw-coupled to the screw holes (310) so that the head part (120) is positioned on the lower side.

[0028] In order to connect a pair of first fixed objects (200)(200') to a second fixed object (300), first, as shown in FIG. 6, a screw body part (110) is assembled so that the head part (120) is positioned on the lower side in the screw hole (310) of the second fixed object (300).

[0029] After that, a second fixed object (300) is inserted between a pair of first fixed objects (200) (200'), and then a screwdriver tip is inserted into the first tip groove (130) of the screw body part (110) exposed through the screw hole (310) of the second fixed object (300) and rotated.

[0030] Then, as shown in FIG. 7, as the head part (120) moves downward, the friction protrusion part (151) is pressed against the bottom of the first fixed object (200) (200'), and then when the screw body part (110) is further rotated, the second fixed object (300) is pushed upward, and the upper end of the second fixed object (300) is pressed against the bending wing (210) so that it is no longer pushed. In this state, if the screw body part (110) is further rotated, the head part (120) descends, and the friction protrusion part (151) digs into the surface of the first fixed object (200) (200') and is completely fixed in position.

[0031] Accordingly, a pair of first fixed objects (200)(200') are completely connected by a second fixed object (300), and the functional bolt does not loosen even if shock or vibration is repeatedly applied to the combined first fixed objects (200)(200') and second fixed objects (300).

[0032] In this way, according to the present invention, by including a first tip groove (130) formed in a screw body part (110) having screw threads and a second tip groove (140) formed in a head part (120), the screw body part can be temporarily assembled to the screw hole (310) of the second fixed object by rotating the second tip groove (140), and the first fixed object (200) (200') and the second fixed object (300) can be connected by rotating the first tip groove (130) of the screw body part (110) that penetrates the screw hole (310) so that the head part (120) presses the bottom of the first fixed object (200) (200').

[0033] In addition, by forming friction protrusions (151)(152)(153) on the head portion (120), even if vibration or impact is applied to a pair of first fixed objects (200)(200') and second fixed objects (300), the functional bolt (100) is prevented from loosening, thereby ensuring stability.

[0034] The present invention has been described with reference to one embodiment illustrated in the drawings, but this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Explanation of the symbols

[0035] 100 ... functional bolt 110 ... screw body 120 ... Head section 130 ... 1st tip groove 140 ... 2nd tip groove 151, 152, 153 ... friction projection 200, 200' ... 1st fixed object 210 ... bending wing 300 ... Second fixed object 310 ... Screw hole

Claims

Claim 1 A first fixed object (200)(200') having a cross-section in the shape of a 'U' and having folded wings (210) formed inwardly at both ends, and a second fixed object (300) having a cross-section in the shape of a 'U' and having a plurality of screw holes (310) formed on the bottom surface so as to be fitted inwardly into the first fixed object (200)(200'), for assembling the first fixed object (200)(200') to the first fixed object (200)(200'), wherein a screw body part (110) having screw threads formed so as to be fastened to the screw holes (310) of the second fixed object (300); and a screw body part (110) formed at one end of the screw body part (110) so as to be positioned on the side of the first fixed object (200)(200'), having a larger diameter than the screw body part (110), and becoming larger towards the end so as to be mounted in the screw holes (310). A functional bolt capable of rotation at both ends, characterized by comprising: a head portion (120) having an inclined side and a flat end formed thereon; a first tip groove (130) in the shape of a + formed on the screw body portion (110) opposite the head portion (120) to which a driver tip is inserted without rotation; a second tip groove (140) in the shape of a + formed on the head portion (120) to which a driver tip is inserted without rotation; and a friction protrusion portion formed to protrude from the upper surface of the head portion (120) to increase frictional force with the first fixed object (200) (200') to which it is in close contact. Claim 2 delete Claim 3 A functional bolt capable of rotation at both ends, wherein, in claim 1, the friction protrusions are a plurality of triangular pyramid-shaped protrusions formed symmetrically on the surface of the head portion (120) with respect to the second tip groove (140). Claim 4 A functional bolt capable of rotation at both ends, wherein, in claim 1, the friction protrusions are formed symmetrically on the surface of the head portion (120) with respect to the second tip groove (140) and are characterized by having a plurality of protrusions with pointed cross-sections arranged in an elongated direction toward the center of the head portion (120). Claim 5 A functional bolt capable of rotation at both ends, wherein, in claim 1, the friction protrusion portion is formed symmetrically on the surface of the head portion (120) around the second tip groove (140) and is characterized by having a plurality of protrusions having pointed cross-sections arranged in a circumferential direction.

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