Screw fastening structure of profile material

Abstract

A screw fastening structure of a profile material according to the disclosed invention comprises: a fastening portion having an end penetrating the first profile and a second profile arranged in a direction orthogonal to the first profile, wherein the end penetrating the first profile is fastened to the second profile; and a contact area enhancing portion provided on the inner opposing surface of the second profile, which improves the contact area by forming screw threads on the opposing surface when fastening the fastening portion. According to the present invention, when the end of the fastening part penetrating the first profile is fastened to the second profile, a contact area enhancing part having a zigzag structure is formed on the inner opposing surface of the second profile, and the fastening part is supported by the screw threads of the fastening part, thereby guiding the direction of travel and increasing the contact area, and having the effect of being firmly fixed regardless of the fastening position of the fastening part.

Description

Technology Field

[0001] The present invention relates to a screw fastening structure of a profile material, and more specifically, to a screw fastening structure of a profile material used to manufacture gallery windows, etc. Background Technology

[0002] Generally, profiles are used in the production of semiconductor equipment or industrial furniture, which are structures for manufacturing various automation facilities used in industrial sites; their applications are not limited to any specific part but are applied in a wide variety of ways.

[0003] These profiles are cut to a predetermined length so that the end surface of the horizontal profile is surface-grounded to one side of the vertical profile, and then fastened and secured using right-angle brackets and fastening screws.

[0004] Thus, technology related to a fastening structure for connecting profiles has been proposed in Korean Registered Patent No. 2020980.

[0005] However, since Patent Document 1 manufactures the profile with a thin thickness to lower the manufacturing cost, there was a problem in that it was difficult to securely fasten the profile on the opposite side with a screw penetrating the profile, as the joint area was small. Prior art literature

[0006] Korean Registered Patent No. 2020980 (September 5, 2019) The problem to be solved

[0007] The present invention has been devised in consideration of the above points, and the objective of the present invention is to provide a screw fastening structure for a profile material that enables a robust fastening by improving the fastening structure of the profile. means of solving the problem

[0008] A screw fastening structure of a profile material according to the present invention for achieving the above objective may be characterized by comprising: a fastening portion in which an end penetrating the first profile is fastened to the second profile, wherein the fastening portion is provided on the inner opposing surface of the second profile and improves the contact area by forming screw threads on the opposing surface when fastening the fastening portion.

[0009] The above contact area enhancement part may be characterized as having a protruding structure.

[0010] The above contact area enhancement part may be characterized by being provided with a zigzag structure.

[0011] The above contact area enhancement portion may be characterized by being integrally formed during the extrusion molding of the second profile.

[0012] The above fastening part may be characterized by being fastened in a vertical direction identical to the formation direction of the contact area enhancement part or in a horizontal direction orthogonal to the formation direction of the contact area enhancement part. Effects of the invention

[0013] According to the present invention, when the end of the fastening part penetrating the first profile is fastened to the second profile, a contact area enhancing part having a zigzag structure is formed on the inner opposing surface of the second profile, and the fastening part is supported by the screw threads of the fastening part, thereby guiding the direction of travel and increasing the contact area, and having the effect of being firmly fixed regardless of the fastening position of the fastening part. Brief explanation of the drawing

[0014] FIG. 1 is a perspective view illustrating a frame to which a screw fastening structure of the profile material of the present invention is applied. FIG. 2 is an exploded perspective view illustrating a frame to which the screw fastening structure of the profile material of the present invention is applied. FIG. 3 is a cross-sectional view illustrating the first and second profiles in the screw fastening structure of the profile material of the present invention. FIG. 4 is a plan view illustrating the deformation state of a projection before and after fastening according to the fastening portion fastened in the longitudinal direction in the second profile of the screw fastening structure of the profile material according to the present invention. FIG. 5 is a plan view illustrating the deformation state of a projection before and after fastening according to the fastening portion fastened in the transverse direction in the second profile of the screw fastening structure of the profile material according to the present invention. FIG. 6 is an enlarged view illustrating the state in which a second profile, having a contact area enhancement portion formed in a screw fastening structure of a profile material according to the present invention, is fastened to a fastening portion while intersecting each other. Specific details for implementing the invention

[0015] The above-mentioned objectives, features, and other advantages of the present invention will become more apparent by describing preferred embodiments of the present invention in detail with reference to the accompanying drawings. Hereinafter, a screw fastening structure of a profile material according to an embodiment of the present invention will be described in detail with reference to the attached drawings.

[0016] FIG. 1 is a perspective view illustrating a frame to which the screw fastening structure of the profile material of the present invention is applied, FIG. 2 is an exploded perspective view illustrating a frame to which the screw fastening structure of the profile material of the present invention is applied, FIG. 3 is a cross-sectional view illustrating the first and second profiles in the screw fastening structure of the profile material of the present invention, FIG. 4 is a plan view illustrating the deformation state of a protrusion before and after fastening of a fastening part fastened in the longitudinal direction in the second profile of the screw fastening structure of the profile material according to the present invention, FIG. 5 is a plan view illustrating the deformation state of a protrusion before and after fastening of a fastening part fastened in the transverse direction in the second profile of the screw fastening structure of the profile material according to the present invention, FIG. 6 is an enlarged view illustrating the state in which the second profiles, in which a contact area enhancement part is formed, are fastened to the fastening part while crossing each other in the screw fastening structure of the profile material according to the present invention.

[0017] Referring to FIGS. 1 to 6, a frame (100) for implementing a screw fastening structure of a profile material according to an embodiment of the present invention includes a first profile (110), a second profile (120), and a fastening part (130).

[0018] At this time, it is preferable that the first profile (110) and the second profile (120) be extruded from a material such as aluminum.

[0019] Furthermore, as shown in FIGS. 1 to 3, the first profile (110) forms the upper and lower sides of the frame (100), the second profile (120) is connected longitudinally to the center of the first profile (110), and a third profile (112) parallel to the second profile (120) is further provided at both ends of the opposite side of the first profile (110).

[0020] The first profile (110) is a transverse profile and is spaced apart in an up-and-down parallel state.

[0021] As shown in FIGS. 1 to 3, at least one second profile (120) is positioned parallel to the third profiles (112) and is composed of a two-sided opposing surface (121) and a front and rear surface (122, 123) connecting the front and rear of the opposing surface (121), wherein an extension surface (124) is formed on each other side of the opposing surface (121) to have a width corresponding to the width of the front surface (122).

[0022] At this time, a contact area enhancement portion (125) is formed in the longitudinal direction on the inner surface of the opposing surface (121) formed in a direction perpendicular to the front and rear surfaces (122, 123).

[0023] The contact area enhancing part (125) functions to enhance the contact (support) area so that the second profile (120) is firmly fixed regardless of the fastening position of the fastening part (130) when the fastening part (130) is fastened from the outer side of the upper and lower first profiles (110) toward the opposing surface (121) of the second profile (120) to fix the second profile (120) between the upper and lower first profiles (110).

[0024] Here, the contact area enhancing portion (125) is formed as a zigzag protrusion structure as shown in FIGS. 3 and 4, and it is preferable that the spacing be slightly smaller than the diameter of the fastening portion (130). That is, the contact area enhancing portion (125) is inclined when the fastening portion (130) penetrates the upper and lower surfaces of the first profile (110) which has a thin thickness and is fastened. As screw threads are formed on the opposing surface to support the fastening portion (130), the contact area is increased while guiding the direction of travel. In this way, when the fastening portion (130) is fastened, the screw threads of the fastening portion (130) deform the opposing surface of the contact area enhancing portion (125) to form screw threads, thereby increasing the contact area of ​​the screw threads and ensuring a secure fastening. Furthermore, since the contact area enhancement part (125) generates a restoring force at the connection point with the inner surface of the opposing surface (121), it presses the two contact surfaces of the fastening part (130) to prevent the fastening part (130) from separating.

[0025] Meanwhile, as shown in FIG. 4, the screw threads of the fastening part (130) penetrating the upper surface of the first profile (110) in the transverse direction are fastened longitudinally to the contact area enhancement part (125) of the second profile (120) arranged in the longitudinal direction. However, as shown in FIG. 5, the screw threads of the fastening part (130) penetrating the side of the first profile (110) in the transverse direction can be fastened transversely to the contact area enhancement part (125) of the second profile (120) arranged in the longitudinal direction.

[0026] In this way, when the fastening part (130) is fastened in a vertical or horizontal direction to the contact area enhancement part (125) formed in a vertical direction, the adjacent pair of contact area enhancement parts (125) are deformed outwardly, thereby forming screw threads on the opposing surface and improving the fastening force.

[0027] Furthermore, referring to FIG. 6, the second profile (120) with the contact area enhancement portion (125) formed thereon and the second profile (120) with the contact area enhancement portion (125) formed thereon can be connected through the fastening portion (130) while crossing each other.

[0028] That is, the fastening part (130) is fastened vertically to the second profile (120) in the horizontal direction so that the spiral axis of the fastening part (130) deforms the adjacent contact area enhancement part (125) in the outward direction and forms screw threads on the opposing surface, and the lower end of the penetrating fastening part (130) deforms the adjacent contact area enhancement part (125) formed on the second profile (120) in the vertical direction so that screw threads are formed on the opposing surface, thus having the advantage of excellent fastening force and durability when the second profiles (120) are joined in a T-shape.

[0029] As shown in FIGS. 1, 2 and 4, the fastening part (130) is configured to fasten the first profile (110) and the second profile (120) and the first profile (110) and the third profile (112), and screws or bolts are applied thereto.

[0030] In this way, the frame (100) for implementing the screw fastening structure of the profile material of the present invention fixes the third profile (112) to both ends of the opposing surface of the first profile (110) on the upper and lower sides using the fastening part (130), and then fixes the second profile (120) to the center of the opposing surface of the first profile (110) using the fastening part (130).

[0031] At this time, when fastening the fastening part (130) from the bottom to the top of the first profile (110), even if the fastening part (130) is inserted crookedly, the fastening part (130) is supported by forming screw threads on the opposite surface of the contact area enhancement part (125) which is provided in a zigzag structure on the inner surface facing the opposite surface (121), thereby guiding the direction of travel of the fastening part (130) and increasing the fastening area.

[0032] The configurations included in the various embodiments described above may also be implemented in various other possible modified combinations not exemplarily described above, provided that such combinations are not clearly excluded from one another in terms of implementation. Explanation of the symbols

[0033] 100: Frame 110: First Profile 120: Second Profile 121: Opposing Face 122, 123: Front, Rear 124: Extended surface 125: Contact area enhancement section

Claims

Claim 1 A screw fastening structure of a profile material, comprising: a fastening portion having an end penetrating the first profile and a second profile arranged in a direction orthogonal to the first profile, wherein the end penetrating the first profile is fastened to the second profile; and a contact area enhancing portion provided on the inner opposing surface of the second profile, which improves the contact area by forming screw threads on the opposing surface when fastening the fastening portion, wherein the contact area enhancing portion is provided in a zigzag structure. Claim 2 delete Claim 3 delete Claim 4 A screw fastening structure of a profile material, characterized in that, in claim 1, the contact area enhancing portion is integrally formed during the extrusion molding of the second profile. Claim 5 A screw fastening structure of a profile material according to claim 1, characterized in that the fastening portion is fastened in a vertical direction identical to the formation direction of the contact area enhancement portion or in a horizontal direction orthogonal to the formation direction of the contact area enhancement portion.

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