Roof cap with waterproof and bolt-on packing

Abstract

A roof cap equipped with a waterproof packing is disclosed, which not only prevents the phenomenon of pre-assembled bolts becoming detached to shorten working time, but also prevents leakage by perfectly sealing the space between the bolt and the roof cap solely through the bolting operation of fixing the roof panel to the roof frame, without additional waterproofing work or additional waterproofing components on the exterior of the roof cap. The roof cap equipped with the waterproof packing may include a main body formed in such a way that its lower surface is in close contact with the crest of the roof panel, with a bolt head seating portion formed from the upper surface to a predetermined depth, and a packing through-hole formed from the bolt head seating portion to the lower surface that communicates with the bolt head seating portion, and a packing made of an elastic material inserted into the bolt head seating portion and the packing through-hole.

Description

Technology Field

[0001] The present invention relates to a roof cap equipped with a waterproof packing, and more specifically, to a roof cap equipped with a waterproof packing used when bolting a roof panel to a roof frame. Background Technology

[0002] Generally, prefabricated houses or factory buildings constructed with sandwich panels use roof caps made of synthetic resin to waterproof the area around the bolt holes and prevent rust on the bolts when fixing the roof panels to the roof frame.

[0003] The roof cap described above requires excessive construction time because it seals the gap between the roof cap and the roof panel using silicone to prevent water from seeping between the roof panel and the roof cap. Additionally, the silicone applied between the roof cap and the roof panel deteriorates over time, causing a gap to form between the roof cap and the roof panel, which can lead to leakage problems.

[0004] In order to solve the above-mentioned problems, roof caps such as the ‘roof cap equipped with a waterproof packing’ having a waterproof sheet or packing interposed in the lower part of the roof cap as disclosed in Korean Utility Model Publication No. 20-2020-0001300 (Publication Date: June 18, 2020) and the ‘bolt cap for panel fixing’ having a ring-shaped elastic member on the lower surface of the roof cap body as disclosed in Korean Utility Model Publication No. 20-0486373 (Registration Date: May 2, 2018) are currently being developed and used.

[0005] However, since this technology involves adding an additional waterproofing component to the exterior of the roof cap, it requires additional work during assembly. Furthermore, because the contact area with the roof panel is limited, there is a problem in that it is difficult to fundamentally resolve the issue of leakage that occurs when the waterproofing packing or elastic member deteriorates.

[0006] In addition, in order to shorten the working time, the actual worker proceeds with the work of fixing the roof panel to the roof frame with the fixing bolts temporarily assembled in multiple roof caps (with the fixing bolts inserted into the through holes provided in the roof caps). However, since the diameter of the through holes provided in the roof caps is formed larger than the diameter of the fixing bolts, the fixing bolts easily detach from the through holes of the roof caps, causing the inconvenience of having to reinsert the detached fixing bolts back into the through holes of the roof caps. Prior art literature

[0007] Republic of Korea Published Utility Model No. 20-2020-0001300 (June 18, 2020) Republic of Korea Published Utility Model No. 20-1999-0017581 (May 25, 1999) Republic of Korea Registered Utility Model No. 20-0486373 (May 2, 2018) Republic of Korea Registered Utility Model No. 20-0413823 (April 5, 2006) The problem to be solved

[0008] The objective of the present invention is to provide a roof cap equipped with a waterproof packing that not only prevents the phenomenon of pre-assembled bolts becoming detached in order to shorten working time, but also perfectly seals the space between the bolt and the roof cap solely through the bolting operation of fixing the roof panel to the roof frame without additional waterproofing work or additional waterproofing components on the exterior of the roof cap, thereby preventing leakage. means of solving the problem

[0009] To achieve the above objective, the present invention provides a roof cap equipped with a waterproof packing comprising: a main body formed such that its lower surface is in close contact with the ridge of a roof panel, wherein a bolt head seating portion is formed from the upper surface to a predetermined depth, and a packing through-hole communicating with the bolt head seating portion is formed from the bolt head seating portion to the lower surface; and a packing made of an elastic material inserted into the bolt head seating portion and the packing through-hole.

[0010] For example, the packing may include a pressure-contacting portion inserted into the bolt head seating portion, an insertion portion extending from the lower end of the pressure-contacting portion to be inserted into the packing through-hole, and a bolt through-hole formed through the pressure-contacting portion and the insertion portion.

[0011] Here, it is preferable that the insertion portion of the packing be formed longer than the depth of the packing through-hole so that its lower portion protrudes by a predetermined length below the packing through-hole.

[0012] In addition, it is preferable that the outer diameter of the pressure-contacting portion of the packing be larger than the inner diameter of the bolt head seating portion of the main body.

[0013] In addition, it is preferable that the diameter of the bolt through-hole of the above packing be smaller than the diameter of the bolt body.

[0014] Meanwhile, a first tapering portion may be formed in the above packing through hole, wherein the diameter gradually increases toward the bottom.

[0016] In addition, the present invention further includes a cover portion covering the outside of the bolt head seating portion of the main body portion, wherein a protruding plug may be formed on the cover portion to be press-fitted into the bolt head seating portion.

[0017] In addition, the present invention further includes a cover portion covering the exterior of the bolt head seating portion of the main body portion, wherein the main body portion has a protruding rim extending from the bolt head seating portion and the cover portion may have a protruding plug formed thereon that is press-fitted to the protruding rim. Effects of the invention

[0018] As described above, the roof cap according to the present invention can perfectly seal the space between the bolt, the bolt head seating portion of the main body, and the packing through-hole by means of simply connecting the bolt to the roof frame without additional waterproofing work such as external silicone work or adding a waterproofing configuration to the outside of the roof cap, such that the packing, which is elastically deformed by being pressed by the bolt head portion, adheres elastically to the bolt head seating portion and the packing through-hole.

[0019] Therefore, the roof cap according to the present invention can significantly reduce construction time by eliminating the need for additional work such as assembling additional components for waterproofing or applying silicone during assembly, and also has the effect of fundamentally preventing leakage caused by silicone degradation over time.

[0020] In addition, the roof cap according to the present invention is manufactured with an elastic material in which the packing is elastically deformed by an external force, and a bolt through-hole formed in the packing such that it has a smaller diameter than the bolt body part is formed so that when the bolt body part is inserted into the bolt through-hole to temporarily fasten the bolt, the inner surface of the packing forming the bolt through-hole is elastically adhered to the bolt body part, thereby preventing the bolt from detaching from the bolt through-hole unless an external force is applied to the bolt temporarily assembled in the bolt through-hole, thus having the effect of further improving work convenience.

[0021] Ultimately, the roof cap according to the present invention can be constructed to achieve perfect watertightness without additional waterproofing work other than the bolting work of fixing the roof panel to the roof frame, thereby preventing leakage caused by silicone degradation over time. Furthermore, since bolts pre-assembled in the roof cap to shorten construction time before bolting do not become detached or lost, it significantly improves work convenience and has the effect of significantly reducing construction time and costs.

[0022] Other effects of the present invention will be clearly grasped and understood by experts or researchers in the art through the specific details described below or during the process of implementing the present invention. Brief explanation of the drawing

[0023] FIG. 1 is a perspective view of a roof cap according to an embodiment of the present invention. FIG. 2 is a cross-sectional view illustrating a roof cap according to an embodiment of the present invention. FIG. 3 is a cross-sectional view illustrating a state in which a roof panel is coupled to a roof frame by a roof cap and a bolt according to an embodiment of the present invention. FIG. 4 is a cross-sectional view illustrating a roof cap according to another embodiment of the present invention. FIG. 5 is a cross-sectional view illustrating a state in which a roof panel is coupled to a roof frame by a roof cap and a bolt according to another embodiment of the present invention. Figure 6 is a detailed view of 'A' in Figure 5. FIG. 7 is a cross-sectional view illustrating a roof cap according to another embodiment of the present invention. FIG. 8 is a cross-sectional view illustrating a state in which a roof panel is coupled to a roof frame by a roof cap and a bolt according to another embodiment of the present invention. Fig. 9 is a detailed view of 'B' in Fig. 8. Specific details for implementing the invention

[0024] The present invention is capable of various modifications and may take various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the invention to the specific disclosed forms, and it should be understood that the invention includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.

[0025] Terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component.

[0026] The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, terms such as "comprising" or "having" are intended to indicate the presence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0027] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which this invention pertains.

[0028] Terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0029] Preferred embodiments of the present invention will be described in more detail below with reference to the drawings.

[0030] FIG. 1 is a perspective view of a roof cap according to one embodiment of the present invention, FIG. 2 is a cross-sectional view for explaining a roof cap according to one embodiment of the present invention, FIG. 3 is a cross-sectional view illustrating a state in which a roof panel is coupled to a roof frame by means of a roof cap and a bolt according to one embodiment of the present invention, FIG. 4 is a cross-sectional view for explaining a roof cap according to another embodiment of the present invention, FIG. 5 is a cross-sectional view illustrating a state in which a roof panel is coupled to a roof frame by means of a roof cap and a bolt according to another embodiment of the present invention, FIG. 6 is a detailed view of 'A' in FIG. 5, FIG. 7 is a cross-sectional view for explaining a roof cap according to yet another embodiment of the present invention, FIG. 8 is a cross-sectional view illustrating a state in which a roof panel is coupled to a roof frame by means of a roof cap and a bolt according to yet another embodiment of the present invention, and FIG. 9 is a detailed view of 'B' in FIG. 8.

[0031] Referring to FIGS. 1 to 9, a roof cap (100) according to one embodiment of the present invention may include a main body part (110) and a packing (120).

[0032] The above main body (110) is formed such that its lower surface is in close contact with the ridge (151) of the roof panel (150), and a bolt head seating portion (111) is formed from the upper surface to a predetermined depth, and a packing through hole (112) communicating with the bolt head seating portion (111) can be formed from the bolt head seating portion (111) to the lower surface.

[0033] To explain in more detail, the main body (110) may be formed in a shape corresponding to the shape of the peak (151) of the roof panel (150), and inclined sections (s) that slope downward in the direction of the outer side of the horizontal section (h) may be provided on both sides of the horizontal section (h). A bolt head seating section (111) may be formed from the upper surface of the horizontal section (h) to a predetermined depth, and a packing through hole (112) may be formed from the bolt head seating section (111) to the lower surface of the horizontal section (h), having a diameter smaller than that of the bolt head seating section (111) and communicating with the bolt head seating section (111).

[0034] The packing (120) is inserted into the bolt head seating portion (111) and the packing through hole (112) and maintains a state of being combined with the main body portion (110). When the bolt (130) passes through the packing (120) and is fastened to the roof frame, it deforms due to the force exerted by the bolt head (131), thereby sealing the space between the bolt head seating portion (111) and the packing through hole (112) and the packing (120), the space between the bolt body portion (132) and the packing (120), and the space between the roof panel and the packing (120).

[0035] For example, the packing (120) may include a pressure contact portion (121), an insertion portion (122), and a bolt through hole (123).

[0036] The above-mentioned pressure contact portion (121) is a part inserted into the above-mentioned bolt head seating portion (111), and when the bolt (130) is connected to the roof frame, it is deformed by being pressed by the bolt head portion (131) and can be pressed and closely contacted to the bolt head seating portion (111). The outer diameter of the pressure contact portion (121) of the packing (120) can be formed to be slightly larger than the inner diameter of the bolt head seating portion (111). Since the packing (120) is formed of an elastic material that is easily deformed by an external force, even if the outer diameter of the pressure contact portion (121) is formed to be slightly larger than the inner diameter of the bolt head seating portion (111), there is no difficulty in attaching the packing (120) to the main body (110). Once the packing (120) is attached to the main body (110), the packing (120) has the effect of not easily detaching from the bolt head seating portion (111) due to the elastic restoring force of the packing (120).

[0037] The insertion part (122) may be formed to extend from the lower end of the pressure contact part (121) so as to be inserted into the packing through hole (112). Here, as shown in FIG. 2, it is preferable that the length of the insertion part (122) be longer than the depth of the packing through hole (112) so that the lower end of the insertion part (122) protrudes by a predetermined length below the packing through hole (112).

[0038] If the length of the insertion part (122) is formed to be longer than the depth of the packing through hole (112), when the bolt (130) is fastened to the roof frame, the lower part protruding below the packing through hole (112) expands outward from the packing through hole (112) to increase the contact area and allows for pressure contact between the lower surface of the main body part (110) and the roof panel (150).

[0039] It is preferable that the above-mentioned pressure contact portion (121) and insertion portion (122) are each formed integrally and continuously in the shape of a disc or cylinder with different diameters.

[0040] The above bolt through hole (123) is formed at the center of the pressure contact portion (121) and the insertion portion (122), and a bolt body portion (132) for fixing the roof cap main body portion (110) to the roof frame is penetrated. It is preferable that the diameter of the bolt through hole (123) be formed slightly smaller than the diameter of the bolt body (132). Since the packing (120) is formed of an elastic material that is easily deformed by external force, even if the diameter of the bolt through hole (123) is formed slightly smaller than the diameter of the bolt body (132), the bolt body (132) can easily pass through the bolt through hole (123) and be fastened. Once the bolt (130) passes through the packing (120) and is temporarily assembled to the roof cap main body (110), the packing (120) maintains a state of close contact with the bolt body (132), so the bolt (130) does not easily detach from the roof cap main body (110).

[0041] In the roof cap fastening process, the worker first pre-assembles the fixing bolts on the roof cap to shorten the work time, transports the multiple pre-assembled parts to the work location, and then proceeds to fix the roof panel by positioning the pre-assembled parts on the roof frame. As described above, if the packing is formed with an elastic material or the diameter of the bolt through hole (123) of the packing is formed slightly smaller than the diameter of the bolt body (132), the bolt (130) does not easily detach from the roof cap main body (110), so the pre-assembled state is maintained. This resolves problems such as the need to re-insert the detached fixing bolt (130) into the main body (110) at a roof work location where there is a risk of safety accidents, thereby reducing the risk of safety accidents and increasing the convenience of the work.

[0042] In addition, the roof cap (100) according to one embodiment of the present invention may further include a cover portion (160) that covers the outside of the bolt head seating portion (111) so as not to enter between the bolt head seating portion (111) and the bolt head portion (131) of the main body portion (110).

[0043] The above cover portion (160) may include a cover (161), a protruding plug (162), and a coupling groove portion (164).

[0044] The above cover (161) can be connected in a hinge shape to one side of the horizontal portion (h) of the main body (110) so as to be opened and closed.

[0045] The protruding plug (162) may be formed in a ring shape on the lower surface of the cover (161) so as to be inserted into the bolt head seating portion (111) when the cover (161) is closed.

[0046] A protruding rim (165) extending from the bolt head seating portion may be provided on the horizontal portion (h) of the main body (110) of the roof cap (100), and the protruding plug (162) of the cover portion (160) is fitted together with the protruding rim (165) when the cover (161) is closed. When the protruding rim (165) is provided on the horizontal portion (h) of the main body (110), a step is formed on the upper part of the bolt head seating portion (111), thereby preventing water from flowing into the bolt head seating portion (111).

[0047] The protruding plug (162) of the above cover (161) can be forcibly fitted with the bolt head seating portion (111) or the protruding rim (165) of the main body, and accordingly, after the cover portion (160) closes the horizontal portion (h), the cover portion (160) is not easily separated from the horizontal portion (h) due to the binding force, and rainwater can be prevented from flowing into the bolt head seating portion (111).

[0048] Meanwhile, the cover portion is provided with a coupling groove (164) to fix the state in which the cover portion is in close contact with the horizontal portion and the horizontal portion is closed, and the horizontal portion (h) of the main body may be provided with a coupling protrusion (163) at a position corresponding to the coupling groove (164).

[0049] The coupling groove (164) of the cover portion (160) may be formed in a ring shape protruding from the lower surface of the cover (161) so that it can be coupled with the coupling protrusion (163) in the form of a snap button when the cover (161) is closed. The coupling protrusion (163) may be formed protruding from the horizontal portion (h) of the main body portion (110). Of course, conversely, it is also possible to form a coupling groove on the horizontal portion (h) of the main body portion (110) and provide a coupling protrusion on the cover portion (160) to enable coupling. In addition, it is also possible to change the fastening structure (not shown) to one using a hook and a fastening groove instead of the coupling groove (164) and the coupling protrusion (163). That is, the cover part (160) may be equipped with a hook and a fastening groove may be formed in the horizontal part (h) of the main body part, so that the hook is inserted into the fastening groove and secured by being caught, thereby fastening and securing the cover part (160) to the main body part (110).

[0050] Meanwhile, as shown in FIGS. 4 to 6, a first tapering portion (T1) with a gradually increasing diameter towards the bottom may be further formed in the packing through hole (112).

[0051] As shown in FIGS. 5 and 6, the first tapered portion (T1) is formed such that its diameter gradually increases toward the bottom. When the bolt (130) is fastened to the roof frame (not shown), the lower end of the insertion portion (122) of the packing is deformed by the first tapered portion (T1) and filled into the internal space of the first tapered portion (T1). Consequently, when the bolt (130) is fastened to the roof frame, the contact area between the packing and the roof panel is widened, and thus the waterproofing performance is improved.

[0052] In addition, as shown in FIGS. 7 to 9, a second tapering portion (T2) may be further formed on the upper part of the packing through-hole (112).

[0053] As shown in FIGS. 8 and 9, the second tapering portion (T2) is formed on the upper part of the packing through hole (112) and is formed such that its diameter gradually decreases as it goes downward. When the bolt (130) is connected to the roof frame, the packing (120) is pressed against the bolt head seating portion (111) by the second tapering portion (T2), causing the lower part of the packing insertion portion (122) to deform more easily outward, thereby increasing the contact area between the packing (120) and the roof panel (150), and consequently improving the waterproofing performance.

[0054] Again, with reference to FIGS. 1 to 9, the process of attaching a roof panel to a roof frame using a roof cap according to the present invention and the effects thereof will be explained.

[0055] Referring to FIGS. 1 to 9, in order to attach a roof panel to a roof frame using the roof cap (100) according to the present invention, a packing (120) is first inserted into the bolt head seating portion (111) and the packing through hole (112) formed in the main body portion (110).

[0056] After inserting the packing (120) into the bolt head seating portion (111) and the packing through hole (112) as described above, the bolt body portion (132) is passed through the bolt through hole (123) formed in the center of the packing (120) to temporarily connect the bolt (130).

[0057] The outer diameter of the pressure contact portion (121) of the packing (120) can be formed slightly larger than the inner diameter of the bolt head seating portion (111). Since the packing (120) is formed of an elastic material that is easily deformed by an external force, even if the outer diameter of the pressure contact portion (121) is formed slightly larger than the inner diameter of the bolt head seating portion (111), there is no difficulty in attaching the packing (120) to the main body (110). Once the packing (120) is attached to the main body (110), the packing (120) has the effect of not easily detaching from the bolt head seating portion (111) due to the elastic restoring force of the packing (120).

[0058] In addition, the bolt through hole (123) formed in the packing (120) is formed to have a smaller diameter than the bolt body (132), and the packing (120) is made of an elastic material that can be elastically deformed by an external force, so that when the bolt body (132) is inserted and pushed in to pass the bolt (130) through the bolt through hole (123), the bolt through hole (123) expands and the bolt body is easily inserted.

[0059] Meanwhile, after the bolt body portion (132) is pushed into the bolt through hole (123) to pass through the bolt through hole (123), the inner surface of the packing (120) forming the bolt through hole (123) is in close contact with the bolt body portion (132) by the restoring force of the packing (120).

[0060] As described above, in the case of the bolt body part (132) that has penetrated the bolt penetration hole (123), it maintains a state of elastic contact with the inner surface of the packing (120) forming the bolt penetration hole (123) by means of the original restoring force of the packing (120), so that unless an external force is applied to the bolt (130) that has penetrated the bolt penetration hole (123), the phenomenon of the bolt (130) pre-assembled in the bolt penetration hole (123) detaching from the bolt penetration hole (123) does not occur.

[0061] At this time, a washer (140) may be placed between the bolt head portion (131) and the pressure contact portion (121) of the packing (120).

[0062] By repeating the above process, bolts (130) are temporarily assembled to multiple roof caps (110), and then the main body (110) is brought into close contact with the protrusion (151) of the roof panel (150). Afterward, the bolts (130) temporarily assembled to the main body (110) are rotated to connect to the roof frame, thereby allowing the roof panel (150) to be fixed to the roof frame.

[0063] At this time, when the bolt (130) is rotated to be joined to the roof frame, the external force applied to the bolt head (131) is transmitted to the pressure contact portion (121) of the packing (120) by the washer (140), thereby pressurizing the pressure contact portion (121).

[0064] When the pressure contact portion (121) of the packing (120) is pressed by the bolt head portion (131), due to the characteristics of the packing (120) which is made of an elastic material capable of elastically deforming by an external force, the pressure contact portion (121) and the insertion portion (122) of the packing (120) are deformed by the external force applied by the bolt head portion (131) and expand inward and outward directions, thereby adhering to the bolt body portion (130) and the bolt head seating portion (111).

[0065] In addition, the insertion part (122) of the packing (120) is also deformed by the external force applied by the bolt head part (131) and expands in the inner and outer directions, and comes into close contact with the bolt body part (130) and the packing through hole (112).

[0066] Meanwhile, in the case of the lower part of the insertion portion (122) protruding by a predetermined length below the packing through-hole (112), it is deformed in the inner and outer directions of the packing through-hole (112) by the external force applied by the bolt head portion (131), thereby increasing the contact area with the roof panel.

[0067] In addition, when a first tapering portion (T1) is further formed in the packing through hole (112), the lower part of the packing insertion portion (122) is deformed to provide a space to be filled, so the contact area between the packing and the roof panel (150) is widened while the bolt (130) is fastened to the roof frame, and accordingly, the waterproofing performance is improved.

[0068] In addition, if a second tapered portion (T2) is further formed on the upper part of the packing through hole (112), when the bolt (130) is connected to the roof frame, the packing (120) is pressed against the bolt head seating portion (111) by the second tapered portion (T2), causing the lower part of the insertion portion (122) of the packing (120) to deform more easily outward, thereby increasing the contact area between the packing (120) and the roof panel (150), and consequently, the waterproofing performance is further improved.

[0069] After the roof panel (150) is attached to the roof frame using the bolt (130) and roof cap (100) as described above, the cover (160) is closed so that the bolt head (131), washer (140), and packing (120) are not exposed to the outside, thereby closing the upper surface of the main body (110).

[0070] As described above, the roof cap (100) according to the present invention allows a roof panel (150) to be fixed to a roof frame by inserting a packing (120) into a bolt head seating portion (111) and a packing through hole (112) formed in the main body portion (110), and then fastening a bolt (130) to the roof frame so as to pass through a bolt through hole (123) formed in the packing (120).

[0071] As described above, when the bolt (130) is fastened to the roof frame and an external force is applied to the packing (120) by the bolt head (131), the pressure contact portion (121) and the insertion portion (122) of the packing (120) are pressed by the bolt head (131), causing them to expand and deform inwardly and outwardly, thereby firmly pressurizing and sealing, which can improve waterproofing performance.

[0072] In this way, the roof cap (100) according to the present invention can perfectly seal the space between the bolt (130), the bolt head seating portion (111) of the main body (110), and the packing through hole (112) by means of the bolt (130) being pressed and elastically deformed by the bolt head portion (131) by simply joining the bolt (130) to the roof frame without additional waterproofing work such as silicone work on the outside or adding a waterproofing configuration on the outside of the roof cap (100).

[0073] Accordingly, the roof cap (100) according to the present invention has the advantage of significantly reducing construction time by not requiring additional work such as assembling additional components for waterproofing or applying silicone during assembly, and also fundamentally preventing leakage caused by silicone degradation over time.

[0074] In addition, to shorten the working time, the worker proceeds with the work of attaching the roof panel (150) to the roof frame while the bolt (130) is pre-assembled on multiple roof caps (100). In the case of a general roof cap, the diameter of the through hole formed in the main body is formed larger than the diameter of the bolt body, so the bolt easily detaches from the through hole of the roof cap, causing the inconvenience of the worker having to find the detached bolt and reinsert it into the through hole of the roof cap. However, the roof cap (100) according to the present invention is made of an elastic material in which the packing (120) is elastically deformed by an external force, and the bolt through hole (123) that is penetrated by the bolt (130) is formed in the packing (120) such that it has a smaller diameter than the bolt body (132). Therefore, when the bolt body (132) is inserted into the bolt through hole (123) to pre-assemble the bolt (130), the bolt through hole (123) in the bolt body (132) Since the inner surface of the packing (120) formed is elastically adhered, the phenomenon of the bolt (130) being detached from the bolt through hole (123) can be prevented unless an external force is applied to the bolt (130) pre-assembled in the bolt through hole (123), thereby further improving the convenience of the work.

[0075] Although the detailed description of the present invention described above has been explained with reference to preferred embodiments of the invention, those skilled in the art or those with ordinary knowledge in the art will understand that various modifications and changes can be made to the invention without departing from the spirit and technical scope of the invention as described in the claims set forth below. Explanation of the symbols

[0076] 100 : Roof cap 110 : Main body 111: Bolt head seating portion 112: Packing through hole 120 : Packing 121 : Pressure sealing part 122 : Insertion part 123 : Bolt through hole

Claims

Claim 1 A roof cap equipped with a waterproof packing, comprising: a main body portion formed such that the lower surface is in close contact with the ridge portion of a roof panel, wherein a bolt head seating portion is formed from the upper surface to a predetermined depth, and a packing through-hole communicating with the bolt head seating portion is formed from the bolt head seating portion to the lower surface; and a packing made of an elastic material inserted into the bolt head seating portion and the packing through-hole, wherein the packing comprises: a pressure contact portion inserted into the bolt head seating portion; an insertion portion extending from the lower end of the pressure contact portion to be inserted into the packing through-hole; and a bolt through-hole formed through the pressure contact portion and the insertion portion, wherein the diameter of the bolt through-hole of the packing is formed to be smaller than the diameter of the bolt body portion. Claim 2 delete Claim 3 A roof cap equipped with a waterproof packing according to claim 1, wherein the insertion portion of the packing is formed longer than the depth of the packing through-hole so that the lower portion protrudes by a predetermined length below the packing through-hole. Claim 4 A roof cap equipped with a waterproof packing, characterized in that, in claim 1, the outer diameter of the pressure-contacting portion of the packing is formed to be larger than the inner diameter of the bolt head seating portion of the main body. Claim 5 delete Claim 6 A roof cap equipped with a waterproof packing according to claim 1, characterized in that a first tapering portion is formed in the packing through-hole, wherein the diameter gradually increases toward the bottom. Claim 7 delete Claim 8 A roof cap equipped with a waterproof packing according to claim 1, further comprising a cover portion covering the outside of the bolt head seating portion of the main body, wherein the cover portion has a protruding plug formed thereon that is press-fitted into the bolt head seating portion. Claim 9 A roof cap equipped with a waterproof packing according to claim 1, further comprising a cover portion covering the exterior of the bolt head seating portion of the main body portion, wherein the main body portion has a protruding rim formed extending from the bolt head seating portion, and the cover portion has a protruding plug formed to be press-fitted onto the protruding rim.

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