Fastening device for a vehicle

Abstract

A fastening device for a vehicle can include a first fastener fixed to a first structure, a second fastener coupled to a housing fixed to a second structure and configured to have the first fastener inserted therein, a fixing unit movably installed in the second fastener and configured to move in a direction intersecting with an insertion direction of the first fastener to selectively restrict relative movement of the first fastener and the second fastener, and a lifting unit installed in the housing in a manner of moving up and down, the lifting unit configured to move up and down by an external force applied by a work tool and configured to adjust a direction in which the fixing unit moves. Since parts required for fastening the first structure and the second structure can be implemented as one assembly, the fastening device for a vehicle can prevent waste of machines and manpower for additional supply work and loss of parts at the time of assembly.

Description

Technical Field

[0001] Exemplary embodiments of this disclosure relate to a fastening device for a vehicle, and more specifically, to a fastening device for a vehicle in which a top cap or battery module can be easily mounted on or detached from the chassis frame of a special purpose vehicle (PBV). Background Technology

[0002] Typically, a private vehicle (PBV) refers to a futuristic vehicle in which, with the development of autonomous driving technology, the user can freely use the interior space of the PBV according to his or her purpose, enabling the provision of customized services to the user as he or she travels to his or her destination.

[0003] This type of PBV has a structure in which a top cap (i.e., the upper body designed according to the user's purpose) is attached to a chassis frame in the form of a skateboard, wherein the battery module is typically located on the underside of the PBV. Therefore, it is necessary to develop a new fastening structure that allows for easy replacement of the top cap or battery module from the PBV's chassis frame and enables automated assembly.

[0004] The background art of this disclosure is disclosed in Korean Patent Application Publication No. 10-2021-0077367 (published on June 25, 2021, with the subject matter "vehicle assembly structure"). Summary of the Invention

[0005] This summary is intended to introduce, in a simplified form, some concepts that will be further described in the following detailed description. This summary is not intended to represent key or essential features of the claimed subject matter, nor is it intended to help determine the scope of the claimed subject matter.

[0006] Various embodiments are intended to provide a fastening device for a vehicle, wherein the top cap or battery module can be easily mounted on or detached from the chassis frame of a special purpose vehicle (PBV).

[0007] In one embodiment, the fastening device for a vehicle includes: a first fastener fixed to a first structure; a second fastener coupled to a housing fixed to a second structure and configured to insert the first fastener therein; a fixing unit movably mounted in the second fastener and configured to move in a direction intersecting the insertion direction of the first fastener to selectively restrict relative movement between the first and second fasteners; and a lifting unit mounted in the housing in a vertically movable manner, the lifting unit being configured to move vertically by an external force applied by a working tool and configured to adjust the direction of movement of the fixing unit.

[0008] In addition, the first fastener includes: a first body that is inserted into the second fastener; and a capturing portion that is recessed from the outside of the first body.

[0009] In addition, the first fastener also includes an entry guide that extends from the first body and is configured to guide the first body into the second fastener.

[0010] Furthermore, the entry guide is formed such that the width of the entry guide decreases towards one end.

[0011] Furthermore, the second fastener includes: a flange connected to the inner side of the housing; a second body extending from the flange in the direction of insertion of the first fastener and configured to allow the first body to be inserted into the second body; and a receiving portion formed to penetrate the second body and configured to support the fixing unit in a manner that allows the fixing unit to move in the radial direction of the second body.

[0012] Furthermore, the receiving portion is formed such that the width of the receiving portion decreases toward the interior of the second body.

[0013] Furthermore, the receiving portion is configured as multiple receiving portions. These receiving portions are spaced apart from each other along the circumference of the second body.

[0014] Furthermore, when the first body is fully inserted into the second body, the receiving portion connects to the capturing portion.

[0015] In addition, the lifting unit includes a lifting member and a guide member, the lifting member being configured to surround the second fastener and be slidable in the length direction of the second fastener, and the guide member being disposed between the lifting member and the second fastener and configured to guide the movement of the fixed unit while operating in conjunction with the lifting movement of the lifting member.

[0016] In addition, the guide member includes: a first guide member recessed from the inside of the lifting member and configured to place the fixing unit at a first position; a second guide member configured to protrude from the inside of the lifting member and place the fixing unit at a second position; and a third guide member disposed between the first guide member and the second guide member and configured to guide the movement of the fixing unit from either the first position or the second position to the other of the first position and the second position.

[0017] In addition, the third guide member is rounded with a specified curvature.

[0018] In addition, the fastening device also includes a reset unit configured to reset the lifting unit to its initial position when the external force applied to the lifting unit by the working tool is released.

[0019] In addition, the reset unit is installed between the housing and the lifting unit and is arranged in a way that allows it to extend and retract in its length direction.

[0020] In addition, the two ends of the reset unit make surface contact with the housing and the lifting unit.

[0021] In addition, each of the two ends of the reset unit has a semi-circular cross-sectional shape.

[0022] In addition, the fastening device includes an anti-detachment unit that is connected to a second fastener and configured to prevent the lifting unit from detaching from the housing.

[0023] In another embodiment, a fastening device for a vehicle includes: a first fastener fixed to a first structure; a housing fixed to a second structure, configured to face the first fastener and to allow the first fastener to be inserted therein; a lifting unit mounted vertically in the housing; a second fastener rotatably connected to the lifting unit; and a reset unit configured to reset the lifting unit to its initial position when the second fastener is separated from the first fastener.

[0024] In addition, the lifting unit includes: a lifting member, installed within the housing and configured to allow a second fastener to be inserted therein; a lifting guide member, extending from the outer peripheral surface of the lifting member and slidably connected to the housing; and a support member, extending from the inner peripheral surface of the lifting member and configured to rotatably support the second fastener, wherein the free end of the support member is rounded.

[0025] Furthermore, the second fastener includes: a second fastening member disposed within the lifting member and configured to have threads disposed on its inner peripheral surface; a hook portion extending from the outer peripheral surface of the second fastening member and disposed above the support member; a flange extending from the outer peripheral surface of the second fastening member, spaced apart from the hook portion, disposed below the hook portion, and configured to house the support member therein; and an insertion groove disposed between the hook portion and the flange and configured to insert the support member therein, wherein the inner side of the insertion groove that contacts the free end of the support member is rounded.

[0026] In addition, the reset unit includes an elastic member installed between the housing and the lifting unit and configured to extend and retract along the length of the housing.

[0027] Because the parts required for fastening the first and second structures can be implemented as a single component, the fastening device for vehicles according to this disclosure can prevent the waste of machinery and manpower for additional supply work and the loss of parts during assembly.

[0028] Furthermore, since the state of the already connected first and second fasteners can be adjusted simply by the lifting and lowering movement of the lifting unit, the fastening device for vehicles according to this disclosure can be assembled more quickly and is advantageous in terms of the automation of assembly.

[0029] Furthermore, since the tightening and loosening of the first and second fasteners can be repeatedly performed by the reset unit, the fastening device for vehicles according to this disclosure can improve assembly efficiency and consistency. Attached Figure Description

[0030] Figure 1 This is a schematic diagram showing the installation state of the fastening device for a vehicle according to the first embodiment of the present disclosure, in which the device has been installed.

[0031] Figure 2 This is a perspective view schematically showing the construction of a fastening device for a vehicle according to a first embodiment of the present disclosure.

[0032] Figure 3 This is a schematic cross-sectional view showing the construction of a fastening device for a vehicle according to a first embodiment of the present disclosure.

[0033] Figure 4 This is an exploded perspective view schematically showing the construction of a fastening device for a vehicle according to a first embodiment of the present disclosure.

[0034] Figure 5 This is a perspective view schematically showing the construction of a first fastener according to a first embodiment of the present disclosure.

[0035] Figure 6A and Figure 6B This is a perspective view schematically showing the structure of the housing according to the first embodiment of the present disclosure.

[0036] Figure 7 This is a perspective view schematically showing the construction of a second fastener according to a first embodiment of the present disclosure.

[0037] Figure 8 This is a view showing the state in which the fixing unit according to the first embodiment of the present disclosure is set in the first position.

[0038] Figure 9 This is a view showing the state in which the fixing unit according to the first embodiment of this disclosure is set in the second position.

[0039] Figure 10A and Figure 10B This is a perspective view schematically showing the structure of the lifting unit according to the first embodiment of the present disclosure.

[0040] Figure 11 This is an enlarged view schematically showing the construction of the guide member according to the first embodiment of the present disclosure.

[0041] Figure 12 This is a perspective view schematically showing the structure of a reset unit according to a first embodiment of the present disclosure.

[0042] Figures 13 to 15 This is a schematic view illustrating the assembly process of a fastening device for a vehicle according to a first embodiment of the present disclosure.

[0043] Figure 16 This is a perspective view showing the state in which the fastening device for a vehicle according to the second embodiment of the present disclosure has been installed.

[0044] Figure 17 This is a perspective view showing a fastening device for a vehicle according to a second embodiment of the present disclosure.

[0045] Figure 18 This is a cross-sectional view showing a fastening device for a vehicle according to a second embodiment of the present disclosure.

[0046] Figure 19 This is an exploded perspective view of a fastening device for a vehicle according to a second embodiment of the present disclosure.

[0047] Figure 20 This is a perspective view showing a first fastener in a fastening device for a vehicle according to a second embodiment of the present disclosure.

[0048] Figure 21 and Figure 22 This is an exploded perspective view showing the housing in a fastening device for a vehicle according to a second embodiment of the present disclosure.

[0049] Figure 23 This is a perspective view showing a lifting unit in a fastening device for a vehicle according to a second embodiment of the present disclosure.

[0050] Figure 24 This is a perspective view showing a second fastener in a fastening device for a vehicle according to a second embodiment of the present disclosure.

[0051] Figure 25 This is a perspective view showing a reset unit in a fastening device for a vehicle according to a second embodiment of the present disclosure.

[0052] Figures 26 to 28 This is a cross-sectional view showing the assembly process of a fastening device for a vehicle according to a second embodiment of the present disclosure. Detailed Implementation

[0053] The following detailed description is intended to assist the reader in gaining a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, after understanding the disclosure of this application, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will become apparent. For example, the order of operations described herein is merely an example and is not limited to those set forth herein, and it will be apparent that changes can be made after understanding the disclosure of this application, except for operations that must occur in a specific order.

[0054] The features described herein may be embodied in different forms and should not be construed as being limited to the instances described herein. Rather, the instances provided herein are merely illustrative of some of the many possible ways to implement the methods, apparatus, and / or systems described herein, as will become apparent upon understanding the disclosure of this application.

[0055] The advantages and features of this disclosure, as well as the methods for achieving these advantages and features, will become clear from the following detailed description of embodiments and accompanying drawings. However, this disclosure is not limited to the embodiments disclosed herein, but will be implemented in various forms. The embodiments of this disclosure are intended to fully disclose the disclosure and enable those skilled in the art to fully understand its scope. This disclosure will be defined only by the scope of the appended claims. Furthermore, the terminology used in this specification is for explaining the embodiments and not for limiting the disclosure.

[0056] Terms such as first, second, A, B, (a), (b), etc., may be used herein to describe components. Each of these terms is not used to define the nature, order, or sequence of the corresponding component, but merely to distinguish the corresponding component from other components. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component.

[0057] Throughout the specification, when a component is described as "connected to" or "attached to" another component, it may be directly "connected to" or "attached to" another component, or there may be one or more other components in between. Conversely, when an element is described as "directly connected to" or "directly attached to" another element, there are no other elements in between.

[0058] Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” also include the plural forms. It should also be understood that, when used herein, the terms “comprising” and / or “including” mean the presence of the stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or combinations thereof.

[0059] Figure 1This is a schematic diagram showing the installation state of the fastening device for a vehicle according to the first embodiment of the present disclosure, in which the device has been installed. Figure 2 This is a perspective view schematically showing the construction of a fastening device for a vehicle according to a first embodiment of the present disclosure. Figure 3 This is a schematic cross-sectional view showing the construction of a fastening device for a vehicle according to a first embodiment of the present disclosure. Figure 4 This is an exploded perspective view schematically showing the construction of a fastening device for a vehicle according to a first embodiment of the present disclosure.

[0060] refer to Figures 1 to 4 According to one embodiment of the present disclosure, a fastening device 1 for a vehicle includes a first fastener 100, a housing 200, a second fastener 300, a fixing unit 400, a lifting unit 500, a reset unit 600, and an anti-detachment unit 700.

[0061] The first structure 10 and the second structure 20 described below can be exemplified as a roof cap corresponding to the vehicle body (which can be customized and replaced according to the user's purpose) and a chassis frame mounted on the underside of the vehicle and structurally supporting the vehicle, respectively. However, the first structure 10 and the second structure 20 are not limited to the roof cap and chassis frame, and can be modified in various ways to be different structures that can be fastened together and separated from each other in the vehicle, such as the chassis frame and the battery module.

[0062] The first fastener 100 is fixed to the first structure 10 and fastened to the second fastener 300 by the action of the fixing unit 400 described later, thereby fixing the first structure 10 and the second structure 20 to each other.

[0063] Figure 5 This is a perspective view schematically showing the construction of a first fastener according to a first embodiment of the present disclosure.

[0064] refer to Figures 1 to 5 According to one embodiment of the present disclosure, the first fastener 100 includes a fixing unit 110, a first body 120, an entry guide 130, and a capturing portion 140.

[0065] According to one embodiment of this disclosure, the fixing unit 110 forms the top appearance of the first fastener 100 and generally supports the second body 320 and the access guide 130, which will be described later. According to one embodiment of this disclosure, the fixing unit 110 is located and fixed to the inside of the bracket portion 11 coupled to the first structure 10. The fixing unit 110 may be welded or bonded to the inside of the bracket portion 11 and integrally coupled to the bracket portion 11. In addition... Figure 4In addition to the circular shape shown, the detailed shape of the fixing unit 110 can be changed in various forms in the design, as long as it can be located and fixed to the inside of the bracket portion 11.

[0066] The first body 120 extends from the fixing unit 110 and forms the appearance of the middle portion of the first fastener 100. According to one embodiment of the present disclosure, the first body 120 may be formed in the form of a rod extending vertically downward from the inside of the fixing unit 110. The second body 320 penetrates the inside of the bracket portion 11 and extends downward from the bracket portion 11.

[0067] The access guide 130 extends from the first body 120 and forms the appearance of the lower portion of the first fastener 100. The access guide 130 is configured to guide the first body 120 such that it enters the interior of the second fastener 300 during the fastening of the first fastener 100 and the second fastener 300. According to one embodiment of this disclosure, the guide 130 extends vertically downward from the lower end of the first body 120. The access guide 130 is formed such that its width decreases towards one end. Therefore, the access guide 130 may be formed to have an approximately conical shape.

[0068] The capturing portion 140 is disposed between the fixing unit 110 and the entry guide portion 130 and is formed in the form of a groove recessed from the outside of the first body 120. The capturing portion 140 extends to form an annular curve in the circumferential direction of the first body 120.

[0069] The housing 200 is fixed to the second structure 20 and generally supports the second fastener 300 and the lifting unit 500, which will be described later. The first fastener 100 is inserted into the housing 200 through the top of the housing 200, such that the fastening operation of the first fastener 100 and the second fastener 300 is performed within the housing 200.

[0070] Figure 6A and Figure 6B This is a perspective view schematically showing the structure of the housing according to the first embodiment of the present disclosure.

[0071] refer to Figure 6A and Figure 6B According to one embodiment of this disclosure, the housing 200 may have an empty interior and may be formed as a cylindrical shape with an open bottom. The length direction of the housing 200 is parallel to the length direction of the first fastener 100. The housing 200 may be supported on the second structure 20 by the action of an assembly portion 201 extending from the side of the housing 200. In this case, the assembly portion 201 may be integrally connected to the second structure 20 by welding or joining, or may be detachably connected to the second structure 20 by bolts.

[0072] An insertion hole portion 202 for inserting a first fastener 100 is formed at the top of the housing 200. According to one embodiment of the present disclosure, the insertion hole portion 202 may be formed in the form of a hole that vertically penetrates the top of the housing 200. The diameter of the insertion hole portion 202 may be formed to be larger than the diameter of the first body 120 in order to smoothly perform the operation of inserting the first fastener 100 into the insertion hole portion 202.

[0073] A guide rail portion 210 may be formed within the housing 200. According to one embodiment of this disclosure, the guide rail portion 210 protrudes vertically from the inner peripheral surface of the housing 200 toward the interior space of the housing 200. However, the guide rail portion 210 is not limited to this shape and may be formed as a recessed groove extending from the inner peripheral surface of the housing 200 toward the outer peripheral surface of the housing 200. The longitudinal direction of the guide rail portion 210 extends parallel to the longitudinal direction of the housing 200. Multiple guide rail portions 210 may be provided. In this case, multiple guide rail portions 210 may be spaced apart from each other and disposed along the inner peripheral surface of the housing 200.

[0074] The second fastener 300 is connected to the housing 200, and the first fastener 100 is inserted into the second fastener 300. The second fastener 300 is fastened to the first fastener 100 by the action of the fixing unit 400, which will be described later, and the first structure 10 and the second structure 20 are fixed to each other.

[0075] Figure 7 This is a perspective view schematically showing the construction of a second fastener according to a first embodiment of the present disclosure.

[0076] refer to Figure 3 and Figure 7 According to one embodiment of the present disclosure, the second fastener 300 includes a flange 310, a second body 320, and a receiving portion 330.

[0077] According to one embodiment of this disclosure, the flange 310 forms the top appearance of the second fastener 300 and is attached to the inner side of the housing 200. According to one embodiment of this disclosure, the flange 310 may be formed in the shape of a hollow disc having a through hole formed in its central portion. The top of the flange 310 is located on and fixed to the underside of the top of the housing 200. The flange 310 may be welded or bonded to the underside of the top of the housing 200 and may be integrally attached to the housing 200. Except... Figure 7 In addition to the circular shape shown, the detailed shape of the flange 310 can be changed in various forms in the design, as long as it can be fixed to the housing 200.

[0078] An assembly guide member 311 is provided on the outer peripheral surface of the flange 310. According to one embodiment of the present disclosure, the assembly guide member 311 may be formed in the form of a groove recessed in the radial direction of the flange 310 from the outer peripheral surface of the flange 310 toward the interior of the flange. A guide rail portion 210 formed in the housing 200 is positioned in the assembly guide member 311. Therefore, the assembly guide member 311 provides guidance for the operation of inserting the second fastener 300 into the housing 200 and prevents the second fastener 300 from rotating arbitrarily within the housing 200. A plurality of assembly guide members 311 are provided. The plurality of assembly guide members 311 are arranged along the circumferential direction of the flange 310 at a specified interval. The number of assembly guide members 311 and the spacing between the assembly guide members 311 correspond to the number of guide rail portions 210 and the spacing between the guide rail portions 210, respectively.

[0079] The second body 320 forms the appearance of the lower portion of the flange 310 and provides space therein for the installation of the receiving portion 330, which will be described later. According to one embodiment of this disclosure, the second body 320 extends vertically downward from the flange 310 in the direction in which the first fastener 100 is inserted. The second body 320 is formed in a hollow cylindrical shape with open sides and connects to a through hole formed in the central portion of the flange 310. During the fastening of the first fastener 100 and the second fastener 300, the first body 120 is inserted into the second body 320 after passing sequentially through the housing 200 and the flange 310.

[0080] The receiving portion 330 is formed to penetrate the second body 320 and support the fixing unit 400, which will be described later, in a manner movable in the radial direction of the second body 320. According to one embodiment of the present disclosure, the receiving portion 330 may be formed in the form of a hole that laterally penetrates the outer peripheral surface of the second body 320. Multiple receiving portions 330 are provided. The multiple receiving portions 330 are arranged circumferentially along the second body 320, spaced apart from each other at a specified interval.

[0081] The receiving portion 330 may be configured such that the width of the receiving portion 330 decreases toward the interior of the second body 320. That is, the receiving portion 330 extends obliquely from the outer peripheral surface of the second body 320 toward the inner peripheral surface of the second body 320 at a specified angle. Therefore, even without a separate external force, the receiving portion 330 can, by its own weight, move the fixing unit 400 from the second position to the first position, as will be described later. The diameter of the end of the receiving portion 330 on the side penetrating the inner peripheral surface of the receiving portion 330 is formed to be smaller than the diameter of the fixing unit 400. Furthermore, the diameter of the end of the receiving portion 330 on the side penetrating the outer peripheral surface of the receiving portion 330 is formed to be larger than the diameter of the fixing unit 400.

[0082] When the first body 120 is fully inserted into the second body 320, the receiving portion 330 connects to the capturing portion 140. This situation, in which the first body 120 is fully inserted into the second body 320, can be seen as an example of a state in which the bottom of the support portion 11 is in contact with the top of the housing 200.

[0083] The fixing unit 400 is movably mounted in the second fastener 300. The fixing unit 400 moves in a direction intersecting the insertion direction of the first fastener 100 and selectively restricts the relative movement of the first fastener 100 and the second fastener 300. According to one embodiment of this disclosure, the fixing unit 400 is formed in an approximately spherical shape and is mounted within a receiving portion 330. Multiple fixing units 400 are provided. The multiple fixing units 400 are respectively mounted within multiple receiving portions 330. The fixing unit 400 is moved to a first or second position within the receiving portion 330 by the lifting movement of the lifting unit 500, described later, and changes the state of the already fastened first fastener 100 and second fastener 300.

[0084] Figure 8 This is a view showing the state in which the fixing unit according to the first embodiment of the present disclosure is set in the first position. Figure 9 This is a view showing the state in which the fixing unit according to the first embodiment of this disclosure is set in the second position.

[0085] refer to Figure 8 The state in which the fixing unit 400 is positioned in the first position can be seen as an example of a state in which, when the fixing unit 400 moves to the outside of the second body 320 in the radial direction, the circumferential surface of the fixing unit 400 has separated from the capturing portion 140 and does not protrude into the interior space of the second body 320. In this case, the first body 120 can move up and down relative to the second body 320 within the second body 320 without any particular interference.

[0086] refer to Figure 9 The state in which the fixing unit 400 is positioned in the second position can be described as such that, when the fixing unit 400 moves radially toward the interior of the second body 320, the circumferential surface of the fixing unit 400 protrudes into the interior space of the second body 320 and is inserted into the capturing portion 140. In this case, the relative movement of the first body 120 with respect to the second body 320 is limited by the capturing force of the capturing portion 140 and the fixing unit 400.

[0087] The lifting unit 500 is mounted in the housing 200 in a vertically movable manner and moves vertically by an external force applied by the working tool 30 (see reference). Figure 14 The lifting unit 500 adjusts the moving direction of the fixed unit 400.

[0088] Figure 10A and Figure 10B This is a perspective view schematically showing the structure of the lifting unit according to the first embodiment of the present disclosure.

[0089] According to one embodiment of the present disclosure, the lifting unit 500 includes a lifting member 510, a lifting guide member 520, and a guide member 530.

[0090] The lifting member 510 is arranged around the second fastener 300 and is installed in a manner that allows it to slide along the length of the second fastener 300.

[0091] According to one embodiment of the present disclosure, the lifting member 510 includes a first lifting member 511 and a second lifting member 512.

[0092] The first lifting member 511 is formed in a hollow cylindrical shape and is installed between the housing 200 and the second body 320. The outer peripheral surface of the first lifting member 511 is in slidable contact with the inner peripheral surface of the housing 200. The inner peripheral surface of the first lifting member 511 is configured to face the outer peripheral surface of the second body 320 at a specified distance from it.

[0093] The second lifting member 512 is formed in a hollow cylindrical shape and extends vertically downward from the lower end of the first lifting member 511. The outer peripheral surface of the second lifting member 512 slidably contacts the inner peripheral surface of the housing 200. The diameter of the inner peripheral surface of the second lifting member 512 is smaller than the diameter of the inner peripheral surface of the first lifting member 511. Therefore, the second lifting member 512 can provide a space in which the bottom of the reset unit 600, which will be described later, can be positioned at the top of the second lifting member 512. The inner peripheral surface of the second lifting member 512 is configured to face the outer peripheral surface of the second body 320 at a specified distance from it.

[0094] The lifting guide member 520 may be formed in the form of a groove, which is recessed radially from the outer peripheral surface of the lifting member 510 toward the interior of the lifting member 510. The length direction of the lifting guide member 520 extends parallel to the length direction of the lifting member 510. The guide rail portion 210 formed in the housing 200 is positioned in the lifting guide member 520. Therefore, the lifting guide member 520 provides guidance for the lifting operation of the lifting member 510 relative to the housing 200 and prevents the lifting member 510 from rotating arbitrarily within the housing 200. Multiple lifting guide members 520 are provided. Multiple lifting guide members 520 are arranged in the circumferential direction of the lifting member 510 at intervals between them. The number of lifting guide members 520 and the spacing between the lifting guide members 520 correspond to the number of guide rail portions 210 and the spacing between the guide rail portions 210, respectively.

[0095] A guide member 530 is disposed between the lifting member 510 and the second fastener 300. The guide member 530 guides the movement of the fixing unit 400 while operating in conjunction with the lifting movement of the lifting member 510. That is, the guide member 530 changes the position of the fixing unit 400 from a first position to a second position or from a second position to a first position in response to the lifting direction of the lifting member 510.

[0096] Figure 11 This is an enlarged view schematically showing the construction of the guide member according to the first embodiment of the present disclosure.

[0097] According to one embodiment of the present disclosure, the guide member 530 includes a first guide member 531, a second guide member 532, and a third guide member 533.

[0098] The first guide member 531 is recessed from the inside of the lifting member 510 and positions the fixing unit 400 in the first position. According to one embodiment of this disclosure, the first guide member 531 is recessed from the inner circumferential surface of the lower end of the second lifting member 512 to the outside of the second lifting member 512 in the radial direction. The first guide member 531 is spaced apart from the outer circumferential surface of the second body 320 by a specified distance. The first guide member 531 extends in the circumferential direction of the second lifting member 512 in a manner forming an annular curved structure. If the lifting member 510 has moved completely upward, the first guide member 531 is positioned facing the receiving portion 330 and provides guidance to the fixing unit 400, such that the fixing unit 400 is positioned in the first position.

[0099] The second guide member 532 protrudes from the inside of the lifting member 510 and positions the fixing unit 400 at the second position. According to one embodiment of this disclosure, the second guide member 532 protrudes laterally in its radial direction from the inner circumferential surface of the top of the second lifting member 512 toward the interior of the second lifting member 512. The second guide member 532 can slidably contact the outer circumferential surface of the second body 320. The second guide member 532 extends in the circumferential direction of the second lifting member 512 in a manner forming an annular curved structure. If the lifting member 510 has moved completely downward, the second guide member 532 is positioned facing the receiving portion 330 and provides guidance to the fixing unit 400, thereby positioning the fixing unit 400 at the second position.

[0100] A third guide member 533 is disposed between the first guide member 531 and the second guide member 532 and provides guidance to the fixing unit 400, allowing the fixing unit 400 to move from either the first position or the second position to the other. According to one embodiment of this disclosure, the third guide member 533 may be formed with a curved surface, the two ends of which are respectively connected to the top of the first guide member 531 and the bottom of the second guide member 532. The third guide member 533 is rounded with a specified curvature. In this case, the curvature of the third guide member 533 may be formed to correspond to the curvature of the fixing unit 400. Therefore, the third guide member 533 can prevent trapping phenomena that may occur during changes in the position of the fixing unit 400 due to the difference in diameter between the first guide member 531 and the second guide member 532.

[0101] When the external force applied to the lifting unit 500 from the working tool 30 is released, the reset unit 600 resets the lifting unit 500 to its initial position. In this case, the initial position of the lifting unit 500 refers to the state in which the lifting unit 500 descends to its maximum value within the housing 200 and contacts the anti-disengagement unit 700, which will be described later. Therefore, the reset unit 600 ensures consistent assembly performance when the first fastener 100 and the second fastener 300 are repeatedly tightened.

[0102] Figure 12 This is a perspective view schematically showing the structure of a reset unit according to a first embodiment of the present disclosure.

[0103] refer to Figure 3 and Figure 12According to one embodiment of this disclosure, a reset unit 600 is installed between the housing 200 and the lifting unit 500. The reset unit 600 is formed in the form of a helical spring, which is arranged in a telescoping manner along its length and elastically supports the lifting unit 500 relative to the housing 200. The length direction of the reset unit 600 is parallel to the length direction of the housing 200. With the lifting unit 500 in its initial position, the reset unit 600 can be installed in its neutral state such that no elastic force is generated along its length.

[0104] The two ends of the reset unit 600 are in contact with and supported by the housing 200 and the lifting unit 500, respectively. More specifically, each end of the reset unit 600 is formed with a semi-circular cross-section, and the two ends of the reset unit 600 are in contact with the lower side of the top of the housing 200 and the top surface of the second lifting member 512. Therefore, the reset unit 600 can be stably maintained in an upright state without special movement between the housing 200 and the lifting unit 500, and even without a separate support device.

[0105] The anti-detachment unit 700 is connected to the second fastener 300 and prevents the lifting unit 500 from detaching from the housing 200. According to one embodiment of this disclosure, the anti-detachment unit 700 may include a connecting portion 710 and an anti-detachment member 720. The connecting portion is formed in a hollow cylindrical shape and its outer peripheral surface is screwed to the inner peripheral surface of the bottom of the second body 320. The anti-detachment member extends radially from the bottom of the connecting portion 710 and is positioned facing the bottom of the lifting member 510. If the lifting member 510 is already in its initial position, the anti-detachment member 720 contacts the bottom of the lifting member 510 and supports it. Therefore, the anti-detachment unit 700 restricts the lifting unit 500 so that it does not arbitrarily separate from the housing 200 due to the spring force of the reset unit 600. Thus, loss of parts can be prevented and repair and replacement can be easily performed.

[0106] The operation of the fastening device 1 for a vehicle according to an embodiment of the present disclosure is described in detail below.

[0107] Figures 13 to 15 This is a schematic view illustrating the assembly process of a fastening device for a vehicle according to a first embodiment of the present disclosure.

[0108] refer to Figures 11 to 15 When the first structure 10 is in place on top of the second structure 20, the first fastener 100 fixed to the first structure 10 is inserted into the second fastener 300 through the insertion hole portion 202.

[0109] At this time, the lifting member 510 is set in its initial position by the elasticity of the reset unit 600. The fixing unit 400 is set in the second position by the second guide member 532, and thus maintains the state in which the circumferential surface of the fixing unit 400 protrudes into the internal space of the second body 320.

[0110] Subsequently, the working tool 30 contacts the bottom of the second lifting member 512 and pushes the lifting member 510 upward.

[0111] When the lifting member 510 moves upward by a specified distance or more, the contact between the fixing unit 400 and the second guide member 532 is released, and the fixing unit 400 is configured to face the first guide member 531.

[0112] The retaining unit 400, which has been released from contact with the second guide member 532, moves outward along the inner side of the receiving portion 330 in the radial direction of the second body 320 by its own weight, and is then positioned in the first position.

[0113] When the fixing unit 400 is positioned in the first position, the fixing unit 400 opens the path along which the first body 120 is inserted into the second body 320. At this time, because the circumferential surface of the fixing unit 400 contacts the inner side of the first guide member 531, the fixing unit 400 can be prevented from detaching from the receiving portion 330.

[0114] Subsequently, the first body 120 continues to be inserted at the point where the capturing portion 140 connects to the receiving portion 330.

[0115] When the capturing part 140 is connected to the receiving part 330, the working tool 30 is separated from the second lifting member 512, and thus the external force applied to the lifting member 510 is released.

[0116] The lifting member 510 moves downward and returns to its initial position by its own weight and the elastic restoring force of the reset unit 600. At this time, since the bottom of the second lifting member 512 is in contact with the top of the anti-detachment member 720 at the initial position of the lifting member 510, it is possible to prevent the lifting member 510 from detaching from the housing 200.

[0117] When the lifting member 510 moves downward, the fixing unit 400, which has already contacted the inner side of the first guide member 531, moves inward in the radial direction of the second body 320 via the third guide member 533. In this case, because the third guide member 533 is rounded with a specified curvature, the fixing unit 400 can move smoothly inward in the radial direction of the second body 320 without any particular interference.

[0118] Subsequently, the fixing unit 400 is positioned at the second location via the second guide member 532, and a portion of the circumferential surface of the fixing unit 400 protrudes into the interior space of the second body 320.

[0119] The circumferential surface of the fixing unit 400, which protrudes into the interior space of the second body 320, is inserted into the capturing portion 140 and restricts the relative movement of the first fastener 100 and the second fastener 300.

[0120] The operation of separating the first fastener 100 and the second fastener 300 from each other can be performed in the reverse order of the operation of assembling the first fastener 100 and the second fastener 300.

[0121] In the following text, a fastening device 1' for a vehicle according to a second embodiment of the present disclosure is described.

[0122] Figure 16 This is a perspective view showing the state in which the fastening device for a vehicle according to the second embodiment of this disclosure has been installed. Figure 17 This is a perspective view showing a fastening device for a vehicle according to a second embodiment of the present disclosure. Figure 18 This is a cross-sectional view showing a fastening device for a vehicle according to a second embodiment of the present disclosure. Figure 19 This is an exploded perspective view of a fastening device for a vehicle according to a second embodiment of the present disclosure.

[0123] refer to Figures 16 to 19 According to this embodiment, the fastening device 1' for a vehicle is composed of components including a first fastener 100, a housing 200, a lifting unit 500, a second fastener 800, and a reset unit 900, which are described in detail below.

[0124] The first structure 10 and the second structure 20 described below can be exemplified respectively as a roof cap corresponding to a vehicle body that can be customized and replaced according to the user's purpose, and a chassis frame mounted on the underside of the vehicle and structurally supporting the vehicle. However, the first structure 10 and the second structure 20 are not limited to the roof cap and the chassis frame, and can be varied in design as different structures that can be fastened together and separated from each other in the vehicle, such as the chassis frame and the battery module.

[0125] The first fastener 100 is fixed to the first structure 10 and fastened to the second fastener 800, thereby fixing the second structure 20 and the first structure 10 to each other.

[0126] Figure 20 This is a perspective view showing a first fastener in a fastening device for a vehicle according to a second embodiment of the present disclosure.

[0127] Reference Figure 20 The first fastener 100 may include a fixing portion 110, an extension portion 120, and an access guide portion 130.

[0128] The retaining portion 110 forms the appearance of the top portion of the first fastener 100 and generally supports the extension portion 120 and the access guide 130. The retaining portion 110 is located and secured to the inside of the bracket portion 11, which is coupled to the first structure 10. The retaining portion 110 may be welded or bonded to the inside of the bracket portion 11 and integrally coupled to the bracket portion 11. (Except in...) Figure 19 and Figure 20 In addition to the circular shape shown, the detailed shape of the fixing part 110 can be changed in various ways in design, as long as these shapes can be located and fixed to the inside of the bracket part 11.

[0129] The extension portion 120 extends from the fixing portion 110 and forms the appearance of the middle portion of the first fastener 100. The extension portion 120 may be formed in the form of a rod extending vertically downward from the inside of the fixing portion 110. The extension portion 120 penetrates the inside of the bracket portion 11 and extends downward from the bracket portion 11. The extension portion 120 has threads formed along its length on its outer peripheral surface, such that the extension portion 120 can be helically connected to the second fastener 800.

[0130] The access guide 130 extends from the extension 120 and forms the appearance of the lower portion of the first fastener 100. The access guide 130 is configured to guide the extension 120 such that, during the fastening of the first fastener 100 to the second fastener 800, the extension 120 enters the interior of the second fastener 800. The access guide 130 extends vertically downward from the lower end of the extension 120. The access guide 130 is formed such that its width decreases towards one end. Therefore, the access guide 130 can be formed to have an approximately tapered shape.

[0131] The housing 200 is fixed to the second structure 20 and is positioned to face the first fastener 100. The housing 200 typically supports the lifting unit 500 and the reset unit 900.

[0132] The housing 200 is configured such that the first fastener 100 is inserted into the housing 200 through the top of the housing 200, such that the fastening operation of the first fastener 100 and the second fastener 800 is performed within the housing 200, and the working tool 30 (such as a socket wrench) can access the bottom of the housing 200.

[0133] Figure 21 and Figure 22 This is an exploded perspective view showing the housing in a fastening device for a vehicle according to a second embodiment of the present disclosure.

[0134] refer to Figures 19 to 22 The housing 200 may have an empty interior and may be formed in a cylindrical shape with an open bottom. The length direction of the housing 200 is parallel to the length direction of the first fastener 100. The housing 200 may be supported against the second structure 20 by the action of the assembly portion 201 extending from the side of the housing 200. In this case, the assembly portion 201 may be integrally connected to the second structure 20 by welding, joining, etc., or detachably connected to the second structure 20 by bolting, etc.

[0135] The top of the housing 200 is positioned facing the end of the first fastener 100 that is fixed to the first structure 10, i.e., the bottom of the entry guide 130. An insertion hole portion 202 for inserting the first fastener 100 is formed at the top of the housing 200. The insertion hole portion 202 may be formed as a hole that vertically penetrates the top of the housing 200. The diameter of the insertion hole portion 202 may be larger than the diameter of the extension portion 120, allowing for smooth insertion of the first fastener 100 into the insertion hole portion 202.

[0136] The guide rail portion 210 may be formed within the housing 200. The guide rail portion 210 protrudes vertically from the inner peripheral surface of the housing 200 toward the interior space of the housing 200. However, the guide rail portion 210 is not limited to this shape and may be formed as a recessed groove from the inner peripheral surface of the housing 200 toward the outer peripheral surface of the housing 200, depending on the shape of the lifting guide member 520 provided in the lifting unit 500. The length direction of the guide rail portion 210 extends in a direction parallel to the length direction of the housing 200. Multiple guide rail portions 210 may be provided. In this case, multiple guide rail portions 210 may be spaced apart from each other and arranged along the inner peripheral surface of the housing 200.

[0137] A stop 220 may be provided at the bottom of the housing 200 to prevent the lifting unit 500 and the reset unit 900 from disengaging from the interior of the housing 200. The stop 220 may be formed in the form of a plate extending laterally from the edge of the bottom of the housing 200 toward the central axis of the housing 200. The stop 220 may be integrally formed with the housing 200, or it may be manufactured separately from the housing 200 and connected to the housing 200 in a separable manner, such as... Figure 18 and Figure 19 As shown. A tool hole portion 221 is formed at the center of the stop member 220, which is formed to penetrate the stop member 220 vertically, so that the working tool 30 (such as a motor drill or socket wrench) can enter the tool hole portion 221.

[0138] The lifting unit 500 is installed within the housing 200 in a vertically movable manner. The lifting unit 500 is used to align the second fastener 800 to its regular position within the housing 200, and also to guide the movement of the second fastener 800 during the fastening of the first fastener 100 and the second fastener 800 together.

[0139] Figure 23 This is a perspective view showing a lifting unit in a fastening device for a vehicle according to a second embodiment of the present disclosure.

[0140] refer to Figures 16 to 23 The lifting unit 500 may include a lifting component 510, a lifting guide component 520, and a support component 530.

[0141] The lifting member 510 forms the schematic appearance of the lifting unit 500 and is mounted within the housing 200 in a vertically movable manner. The lifting member 510 is formed as a hollow column with open sides and is mounted within the housing 200. The outer peripheral surface of the lifting member 510 is spaced apart from the inner peripheral surface of the housing 200 by a given distance, such that the lifting member 510 can move smoothly up and down within the housing 200 and provides space in which the lifting guide member 520 and the reset unit 900, described below, can be installed.

[0142] The lifting guide member 520 extends from the outer peripheral surface of the lifting member 510 and is slidably connected to the guide rail portion 210 disposed on the inner peripheral surface of the housing 200. The lifting guide member 520 may be formed in the form of an annular plate that extends laterally from the outer peripheral surface of the lifting member 510 in the radial direction at the bottom of the lifting member. The lifting guide member 520 is formed with a diameter larger than that of the tool hole portion 221. Therefore, because the inner side of the lifting guide member 520 contacts the upper side of the stop member 220, it is possible to prevent the lifting guide member 520 from deviating towards the outside of the housing 200 and to prevent the working tool 30 from directly contacting the reset unit 900.

[0143] A lifting guide member 520 is connected to a guide rail portion 210 and slidably passes through a lifting guide member 521 formed in the outer peripheral surface of the lifting guide member 520. The lifting guide member 521 may be formed in the form of a groove recessed from the outer peripheral surface of the lifting member 510 toward the central axis of the lifting member 510. The lifting guide member 521 is formed to have a cross-section corresponding to the cross-section of the guide rail portion 210 protruding from the inner peripheral surface of the housing 200. The lifting guide member 521 is inserted into the guide rail portion 210. The lifting guide member 521 slides along the length direction of the guide rail portion 210 and supports the lifting member 510 against the housing 200, causing the lifting member 510 to move up and down. However, the lifting guide member 521 is not limited to this. If the guide rail portion 210 is formed to be recessed from the inner peripheral surface of the housing 200, the lifting guide member 521 may be formed to protrude from the outer peripheral surface of the lifting member 510. Multiple lifting guide members 521 may also be provided. The lifting guide members 521 can be spaced apart from each other at a given interval and are vertical on the outer peripheral surface of the lifting member 510.

[0144] A support member 530 extends from the inner peripheral surface of the lifting member 510 and rotatably supports the second fastener 800. The support member 530 may be formed as a ring extending laterally in the radial direction toward the interior of the lifting member 510 from its inner peripheral surface at the top of the lifting member. For smooth rotation of the second fastener 800, the free end of the support member 530 may be rounded on its outer side, giving the free end a given curvature. When the second fastener 800 is raised to its maximum height when the first fastener 100 and the second fastener 800 are fastened together, the support member 530 does not contact the upper side of the housing 200 on its inner side, so that the rotational power of the second fastener 800 is not transmitted to the lifting unit 500.

[0145] The second fastener 800 is rotatably connected to the lifting unit 500. The second fastener 800 is connected to a working tool 30 that enters the housing 200 through the bottom of the housing 200, and rotates clockwise or counterclockwise about its central axis by a rotational force applied by the working tool 30. The second fastener 800 is either secured to or separated from the first fastener 100 depending on its direction of rotation, and moves vertically within the housing 200 together with the lifting unit 500. That is, the second fastener 800 is connected to the lifting unit 500 such that it can move vertically as a whole with the lifting unit 500, and also rotates relative to the lifting unit 500.

[0146] Figure 24 This is a perspective view showing a second fastener in a fastening device for a vehicle according to a second embodiment of the present disclosure.

[0147] refer to Figures 16 to 24 The second fastener 800 may include a second fastening member 810, a hook portion 820, a flange 830, and an insertion groove 840.

[0148] The second fastening member 810 is formed in the shape of a hollow rod and is inserted into the lifting member 510. The second fastening member 810 is formed to have a smaller diameter than the lifting member 510. The outer peripheral surface of the second fastening member 810 is spaced apart from the inner peripheral surface of the lifting member 510 by a given distance. Therefore, the second fastening member 810 can rotate smoothly within the lifting member 510 without specific interference. Threads screwed onto the outer peripheral surface of the extension 120 are provided on the inner peripheral surface of the second fastening member 810. The second fastening member 810 is formed to have a length in which its bottom can protrude downward from the lifting member 510. Therefore, the second fastening member 810 can improve the accessibility of the working tool 30.

[0149] The second fastening member 810 can be formed with a polygonal cross-section. The cross-section of the second fastening member 810 can be hexagonal. Therefore, the second fastening member 810 can effectively receive the rotational power from the working tool 30.

[0150] The hook portion 820 extends from the second fastening member 810 and is disposed above the support member 530. The hook portion 820 is formed to be generally curved from the top of the second fastening member 810 to the outer side of the second fastening member 810 in its radial direction. "Shape. When the second fastening member 810 rotates about its central axis, the lower side of the hook portion 820 is positioned above the support member 530, so that the hook portion 820 rotates relative to the support member 530. In order to ensure the smooth rotation of the second fastener 800, a gap G is formed between the support member 530 and the hook portion 820."

[0151] A flange 830 extends from the second fastening member 810 and is disposed below the support member 530. The support member 530 is located within the flange 830. Furthermore, the flange 830 prevents the second fastening member 810 from moving up and down relative to the lifting unit 500. Therefore, the second fastening member 810 can be supported in a state where the second fastening member 810 moves up and down integrally with the lifting member 510 and also rotates relative to the lifting member 510.

[0152] The flange 830 extends laterally from the outer peripheral surface of the second fastening member 810 in its radial direction to the outside of the second fastening member 810. The flange 830 is spaced apart from the hook portion 820 by a given distance in the longitudinal direction of the second fastening member 810 and is configured to face the hook portion 820. When the support member 530 is located within the flange 830, the flange 830 is configured to face the lower side of the support member 530 at its bottom.

[0153] An insertion groove 840 is provided between the hook portion 820 and the flange 830. A support member 530 is inserted into the insertion groove 840. The inner side of the insertion groove 840 that contacts the free end of the support member 530 may be rounded towards the inside of the insertion groove 840, giving the inner side a given curvature. Lubricant is applied to the inner side of the insertion groove 840. A gap G is formed between the support member 530 and the hook portion 820.

[0154] As the second fastening member 810 rotates via the working tool 30, when the second fastening member 810 rises to its maximum height, the hook portion 820 provided on the support member 530 contacts the upper side of the housing 200 on its inner side. The support member 530 inserted into the insertion groove 840 does not contact the upper side of the housing 200 on its inner side via the hook portion 820.

[0155] At this time, although the working tool 30 continues to rotate the second fastening member 810, the free end of the support member 530, which is rounded outwards, contacts the inner side of the insertion groove 840, which is rounded inwards, so that the inner side has a given curvature. Lubricant is applied to the inner side of the insertion groove 840. A gap G is formed between the support member 530 and the hook portion 820. Therefore, breakage of the support member 530 and the lifting member 510 can be prevented because the rotational power of the second fastening member 810 is not transmitted to the lifting unit 500 and only the second fastening member 810 rotates smoothly.

[0156] When the second fastener 800 separates from the first fastener 100, the reset unit 900 returns the lifting unit 500 to its initial position. The initial position of the lifting unit 500 can refer to the state in which the lifting unit 500 has been lowered to its maximum extent within the housing 200 and the lower side of the lifting guide member 520 is located in the stop member 220. Therefore, the reset unit 900 ensures consistent assembly performance when the first fastener 100 and the second fastener 800 are repeatedly tightened together.

[0157] Figure 25 This is a perspective view showing a reset unit in a fastening device for a vehicle according to a second embodiment of the present disclosure.

[0158] refer to Figure 18 and Figure 25 The reset unit 900 may include an elastic member 910. The elastic member 910 is mounted between the housing 200 and the lifting unit 500. The elastic member 910 is formed as a helical spring that is extendable and retractable along its length and elastically supports the lifting unit 500 against the housing 200. The length direction of the elastic member 910 is parallel to the length direction of the housing 200. When the lifting unit 500 is placed in its initial position, the elastic member 910 can be installed in a neutral state such that no elastic force is generated from the elastic member 910 in its length direction.

[0159] The two ends of the elastic member 910 are in contact with and supported by the surfaces of the housing 200 and the lifting unit 500, respectively. More specifically, each end of the elastic member 910 is formed with a semi-circular cross-sectional shape, and the two ends of the elastic member 910 are in surface contact with the lower side of the top of the housing 200 and the upper side of the lifting guide member 520. Therefore, the elastic member 910 can be stably maintained in an upright state without the need for special movement between the housing 200 and the lifting unit 500, or even a separate support device.

[0160] The assembly process of a fastening device for a vehicle according to a second embodiment of the present disclosure having the above-described structure will be described below.

[0161] Figures 26 to 28 This is a cross-sectional view showing the assembly process of a fastening device for a vehicle according to a second embodiment of the present disclosure.

[0162] Reference Figures 26 to 28 The first fastener 100 is inserted into the housing 200.

[0163] The entry guide 130 is inserted into the second fastening member 810 provided in the second fastener 800, which, together with the lifting unit 500, is located in its initial position within the housing 200. In this case, since the width of the entry guide 130 is formed to decrease towards one end, the entry guide 130 can be smoothly inserted into the second fastening member 810.

[0164] The working tool 30 is connected to the second fastening member 420 disposed in the second fastener 800.

[0165] The working tool 30 increases or decreases the rotational power toward the second fastener 800, and simultaneously pushes the lifting unit 500 upward. In this case, because the lifting guide member 520 is formed to have a larger diameter than the tool hole portion 221, direct contact between the working tool 30 and the elastic member 910 can be prevented.

[0166] As the lifting unit 500 moves upward a predetermined distance, the inner peripheral surface of the second fastening member 810 engages with the outer peripheral surface of the extension portion 120.

[0167] The second fastener 800 is continuously rotated by the working tool 30 and spirally connected to the first fastener 100, and the second fastener moves upward from the housing 200 together with the lifting unit 500.

[0168] In this situation, the elastic member 910 contracts along its length and accumulates elastic restoring force.

[0169] When the upper side of the lifting component 510 contacts the inner side of the second structure 20, the assembly of the first fastener 100 and the second fastener 800 is completed.

[0170] The process of separating the first fastener 100 and the second fastener 800 from each other is performed in the reverse order of the process of fastening the first fastener 100 and the second fastener 800 together.

[0171] As the helical connection between the first fastener 100 and the second fastener 800 is released, the elastic member 910 extends along its length due to the elastic restoring force accumulated therein, causing the lifting unit 500 and the second fastener 800 to move downward. Therefore, the lifting unit 500 and the second fastener 800 return to their initial positions.

[0172] Because the parts required to fasten the first structure 10 and the second structure 20 are implemented as a single component, the fastening device for vehicles according to this embodiment prevents the waste of machinery and manpower for additional supply work and prevents the loss of parts during assembly. Because the second fastener 800 is supported by the lifting unit 500, allowing it to rotate and move up and down while maintaining its normal position relative to the first fastener 100, the fastening device for vehicles according to this embodiment prevents assembly failure.

[0173] Because the second fastener 800 is directly and rotatably supported by the lifting unit 500, the fastening device for vehicles according to this embodiment can reduce the number of parts.

[0174] In the fastening device for a vehicle according to this embodiment, the hook portion 820 contacts the top of the housing 200 on its inner side, and the support member 530 does not contact the top of the housing 200 on its inner side via the hook portion 820. Although the second fastener 800 continues to rotate, the rounded free end of the support member 530 (such that the free end has a given curvature) contacts the rounded inner side of the insertion groove 840 (such that the inner side has a given curvature). Lubricant is applied to the inner side of the insertion groove 840. A gap G is formed between the support member 530 and the hook portion 820. Therefore, because the rotational power of the second fastener 800 is not transmitted to the lifting unit 500 and only the second fastener 800 rotates smoothly, damage to the lifting unit 500 can be prevented.

[0175] Because the first fastener 100 and the second fastener 800 can be repeatedly fastened together and separated from each other by the reset unit 900, the fastening device for vehicles according to this embodiment can improve assembly efficiency and consistency.

[0176] Because the two ends of the reset unit 900 are in direct surface contact with the housing 200 and the lifting unit 500, the fastening device for vehicles according to this embodiment can reduce the weight of the product and make it easier to assemble.

[0177] Because the reset unit 900 is disposed between the upper side of the lifting guide member 520 and the inner side of the housing 200 on its upper side, the fastening device for the vehicle according to this embodiment can prevent interference with the working tool 30.

[0178] The present disclosure has been described above based on embodiments shown in the accompanying drawings, but these embodiments are merely illustrative. Those skilled in the art to which this disclosure pertains will understand that various modifications and other equivalent embodiments can be made through these embodiments.

Claims

1. A fastening device for a vehicle, wherein, The fastening device for the vehicle includes: The first fastener is used to fix the first structure. The second fastener is attached to the housing fixed to the second structure and configured to allow the first fastener to be inserted into the second fastener; A fixing unit, movably mounted in the second fastener and configured to move in a direction intersecting the insertion direction of the first fastener, to selectively restrict relative movement between the first and second fasteners; and A lifting unit is installed in the housing in a vertically movable manner. The lifting unit is configured to move vertically by an external force applied in the vertical direction by a working tool and is configured to adjust the direction of movement of the fixed unit. The second fastener includes: The second body is configured to allow the first fastener to be inserted into the second body; and The receiving portion is formed to penetrate the second body and is configured to support the fixing unit in such a way that the fixing unit can move in the radial direction of the second body, wherein the receiving portion is formed such that the width of the receiving portion decreases toward the interior of the second body.

2. The fastening device for a vehicle according to claim 1, wherein, The first fastener includes: The first body is inserted into the second fastener; and The capture portion is recessed from the outside of the first body.

3. The fastening device for a vehicle according to claim 2, wherein, The first fastener further includes an entry guide that extends from the first body and is configured to guide the first body into the second fastener.

4. The fastening device for a vehicle according to claim 3, wherein, The entry guide is configured such that the width of the entry guide decreases towards one end of the entry guide.

5. The fastening device for a vehicle according to claim 2, wherein, The second fastener also includes: A flange, connected to the inner side of the housing; The second body extends from the flange in the direction in which the first fastener is inserted.

6. The fastening device for a vehicle according to claim 2, wherein: The receiving portion is configured as multiple receiving portions; and The plurality of receiving portions are arranged to be spaced apart from each other along the circumference of the second body.

7. The fastening device for a vehicle according to claim 2, wherein, When the first body is fully inserted into the second body, the receiving portion is connected to the capturing portion.

8. The fastening device for a vehicle according to claim 1, wherein, The lifting unit includes: A lifting member, configured to be mounted around the second fastener and in a manner that allows it to slide along the length of the second fastener; and A guide member is disposed between the lifting member and the second fastener and configured to guide the movement of the fixing unit while operating in conjunction with the lifting movement of the lifting member.

9. The fastening device for a vehicle according to claim 8, wherein, The guiding component includes: The first guide member is recessed from the inside of the lifting member and configured to place the fixing unit at the first position; A second guide member is configured to protrude from the inside of the lifting member and position the fixing unit at a second location; and A third guide member is disposed between the first guide member and the second guide member and configured to provide guidance for the movement of the fixed unit from either the first position or the second position to the other of the first position or the second position.

10. The fastening device for a vehicle according to claim 9, wherein, The third guide member is rounded with a specified curvature.

11. The fastening device for a vehicle according to claim 1, wherein, The fastening device for the vehicle further includes a reset unit configured to reset the lifting unit to its initial position when the external force applied to the lifting unit by the working tool is released.

12. The fastening device for a vehicle according to claim 11, wherein, The reset unit is installed between the housing and the lifting unit and is arranged in a manner that allows it to extend and retract along the length of the reset unit.

13. The fastening device for a vehicle according to claim 12, wherein, The two ends of the reset unit are in surface contact with the housing and the lifting unit.

14. The fastening device for a vehicle according to claim 13, wherein, The reset unit has a semi-circular cross-sectional shape at both ends.

15. The fastening device for a vehicle according to claim 1, wherein, The fastening device for the vehicle further includes an anti-detachment unit, which is coupled to the second fastener and configured to prevent the lifting unit from detaching from the housing.

Images