Door closing shock absorber and door mechanism provided with the same

Abstract

The present invention relates to a door closing shock absorption device comprising a main bracket, a rotating bracket coupled to the main bracket so as to be rotatable relative to it, and a main bracket torsion elastic member that elastically supports the relative rotation of the main bracket and the rotating bracket.

Description

Technology Field

[0001] The present invention relates to a door of a vehicle body, and more specifically, to a door closing shock absorption device and a door mechanism including the same. Background Technology

[0002] Various types of vehicle doors are used, including regular doors hinged to the body or pillars, scissor doors (or Lambo doors) that open and close by rotating upwards, butterfly doors or gull-wing doors that open and close upwards and outwards, sliding doors that open and close along the length of the body, and coach doors (or Suicide doors) in which the front and rear doors open and close in opposite directions.

[0003] In the case of opposing doors, the door panel and the weatherstrip may not be fully matched when the door is closed. This may cause the door to shake, impact between the door and the vehicle body, and noise.

[0004] The matters described in this background technology section are written to enhance understanding of the background of the invention and may include matters that are not prior art already known to those skilled in the art to which this technology belongs. The problem to be solved

[0005] The present invention relates to a door closing shock absorption device capable of absorbing shock when a door is closed to prevent shaking of the door, and a door mechanism including the same. means of solving the problem

[0006] A door closing shock absorption device according to an embodiment of the present invention may include a main bracket, a rotating bracket coupled to the main bracket so as to be rotatable relative to it, and a main bracket torsion elastic member that elastically supports the relative rotation of the main bracket and the rotating bracket.

[0007] The door closing shock absorption device according to an embodiment of the present invention may further include a main bracket stopper that limits the relative rotation of the main bracket and the rotating bracket.

[0008] A door closing shock absorption device according to an embodiment of the present invention may further include a mounting bracket coupled to the rotating bracket so as to be rotatable relative to it, and a mounting bracket torsion elastic member that elastically supports the relative rotation of the rotating bracket and the mounting bracket.

[0009] The door closing shock absorption device according to an embodiment of the present invention may further include a mounting bracket stopper that limits the relative rotation of the rotating bracket and the mounting bracket.

[0010] The door closing shock absorption device according to an embodiment of the present invention may further include a shock absorption part mounted on one end of the main bracket.

[0011] The door mechanism according to an embodiment of the present invention may include the door closing shock absorption device according to an embodiment of the present invention.

[0012] It may further include a main bracket stopper that limits the relative rotation of the main bracket and the rotating bracket.

[0013] A door mechanism according to an embodiment of the present invention may further include a mounting bracket coupled to the rotating bracket so as to be rotatable relative to it, and a mounting bracket torsion elastic member that elastically supports the relative rotation of the rotating bracket and the mounting bracket.

[0014] A door mechanism according to an embodiment of the present invention may further include a mounting bracket stopper that limits the relative rotation of the rotating bracket and the mounting bracket.

[0015] The above mounting bracket can be mounted on the door.

[0016] The door mechanism according to an embodiment of the present invention may further include a door receiving groove formed concavely into the inner side of the door so as to receive the mounting bracket.

[0017] The above door receiving groove can be formed in the lower part of the door.

[0018] The door mechanism according to an embodiment of the present invention may further include a shock absorber mounted on one end of the main bracket.

[0019] The door mechanism according to an embodiment of the present invention may further include a vehicle body receiving groove formed concavely in the vehicle body, which selectively contacts the shock absorbing part.

[0020] The main bracket above can rotate in the opposite direction to the sliding direction of the door when the door is closed.

[0021] The above-mentioned rotating bracket can rotate in the sliding direction of the door when the door is closed.

[0022] The above door may be a facing door or a facing swing door.

[0023] The above door may be a rear door. Effects of the invention

[0024] According to the door closing shock absorption device and the door mechanism including the same according to an embodiment of the present invention, the shock can be absorbed when an opposing door is closed to prevent shaking of the door.

[0025] According to the door closing shock absorption device and the door mechanism including the same according to an embodiment of the present invention, shock can be absorbed when a door is closed to suppress noise generation, thereby improving marketability.

[0026] Furthermore, other effects that can be obtained or predicted by the embodiments of the present invention will be disclosed directly or implicitly in the detailed description of the embodiments of the present invention. That is, various effects predicted according to the embodiments of the present invention will be disclosed within the detailed description to be set forth below. Brief explanation of the drawing

[0027] These drawings are for reference to explain exemplary embodiments of the present invention, and therefore, the technical concept of the present invention should not be interpreted as being limited to the attached drawings. FIGS. 1 to 4 are plan views showing the operation of a vehicle body to which a door closing shock absorption device and a door mechanism including the same according to an embodiment of the present invention can be applied. FIG. 5 is a side view of a vehicle body to which a door closing shock absorption device and a door mechanism including the same according to an embodiment of the present invention can be applied. FIG. 6 is a perspective view of a vehicle body to which a door closing shock absorption device and a door mechanism including the same according to an embodiment of the present invention can be applied. FIGS. 7 and 8 are perspective views illustrating the unfolded state of a door closing shock absorber according to an embodiment of the present invention. FIG. 9 is a perspective view illustrating a door closing state of a vehicle body to which a door closing shock absorption device according to an embodiment of the present invention and a door mechanism including the same can be applied. FIG. 10 is a perspective view illustrating the folded state of a door closing shock absorption device according to an embodiment of the present invention. FIG. 11 is a drawing showing the operation of a door closing shock absorption device according to an embodiment of the present invention and a door mechanism including the same. Specific details for implementing the invention

[0028] Hereinafter, embodiments of the present invention are described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein.

[0029] To clearly explain the present invention, parts unrelated to the explanation have been omitted, and the same reference numerals are used for identical or similar components throughout the specification.

[0030] The size and thickness of each component shown in the drawings are depicted arbitrarily for the convenience of explanation, and thus the present invention is not necessarily limited to what is shown in the drawings; furthermore, the thickness has been enlarged to clearly represent various parts and regions.

[0031] Furthermore, in the detailed description below, the designation of components as "1st," "2nd," etc., is intended to distinguish them due to their identical nature, and is not strictly limited to that order in the description below.

[0032] Throughout the specification, when a part is described as including a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components.

[0033] In addition, terms such as ...part, ...means, etc., as described in the specification refer to a comprehensive unit of composition that performs at least one function or operation.

[0034] When a part such as a layer, membrane, region, or plate is said to be "on" another part, this includes not only the case where it is directly on top of the other part, but also the case where there is another part in between.

[0035] Conversely, when it is said that one part is "directly above" another part, it means that there is no other part in between.

[0036] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0037] FIGS. 1 to 4 are plan views showing the operation of a vehicle body to which a door closing shock absorption device and a door mechanism including the same according to an embodiment of the present invention can be applied.

[0038] In FIGS. 1 to 4, for ease of understanding, a door closing shock absorption device and a door mechanism including the same according to an embodiment of the present invention are shown in a pillarless car body with a coach door (also known as a suicide side door), but the invention is not limited thereto. That is, the door closing shock absorption device and a door mechanism including the same according to an embodiment of the present invention can be applied to a car body with pillars, and can also be applied to a car body with a facing door or a facing swing door.

[0039] In FIGS. 1 to 4, the vehicle body (10) to which the door closing shock absorption device and the door mechanism including the same according to an embodiment of the present invention can be applied includes a door (20).

[0040] The above door (20) may include a front door (22) at the front of the vehicle and a rear door (24) at the rear of the vehicle.

[0041] For ease of understanding, the door closing shock absorption device and the door mechanism including the same according to an embodiment of the present invention are described as being applied to the rear door (24), but are not limited thereto, and the door closing shock absorption device and the door mechanism including the same according to an embodiment of the present invention may also be applied to the front door (22).

[0042] Drawing reference number 130 is a door mounting bracket for mounting the rear door (24) to the vehicle body (10), and the rear door (24) can swing or slide relative to the door mounting bracket (130).

[0043] Reference number 132 shown in FIG. 4 is a guide striker that guides the movement of the rear door (24) along the vehicle body length direction when the rear door (24) is sliding.

[0044] FIG. 1 shows the rear door (24) in a closed state, FIG. 2 shows the sliding operation of the rear door (24), FIG. 3 shows the transition operation from the sliding operation to the swing operation of the rear door (24), and FIG. 4 shows the rear door (24) in a fully open state.

[0045] In the detailed description and claims of the present invention, the sliding operation refers to the operation in which the door (20) moves in the front-rear direction of the vehicle body (10), and the swing operation refers to the door (20) rotating around a certain rotation axis.

[0046] FIG. 5 is a side view of a vehicle body to which a door closing shock absorption device and a door mechanism including the same according to an embodiment of the present invention can be applied.

[0047] Referring to FIG. 5, the door closing shock absorber (30) according to an embodiment of the present invention may be mounted on the lower part of the vehicle body (10). That is, the door closing shock absorber (30) may be positioned between the rear door (24) and the vehicle body (10) near the door mounting bracket (130).

[0048] FIG. 6 is a perspective view of a vehicle body to which a door closing shock absorbing device and a door mechanism including the same according to an embodiment of the present invention can be applied, and FIG. 7 and FIG. 8 are perspective views showing the unfolded state of a door closing shock absorbing device according to an embodiment of the present invention.

[0049] Referring to FIGS. 5 to 8, a door closing shock absorption device (30) according to an embodiment of the present invention may include a main bracket (32), a rotating bracket (40) coupled to the main bracket (32) so as to be rotatable relative to it, and a main bracket torsion elastic member (34) that elastically supports the relative rotation of the main bracket (32) and the rotating bracket (40).

[0050] A main bracket rotation axis (39) may be provided between the main bracket (32) and the rotation bracket (40) so that the main bracket (32) and the rotation bracket (40) can rotate relative to each other. As shown in the drawing, the main bracket torsion elastic member (34) may be a spring-type torsion spring wound around the main bracket rotation axis (39) to elastically support the main bracket (32) and the rotation bracket (40), but is not limited thereto, and the main bracket torsion elastic member (34) may be configured in various forms, such as a plate-shaped torsion spring.

[0051] A door closing shock absorption device (30) according to an embodiment of the present invention may further include a main bracket stopper (38) that limits the relative rotation of the main bracket (32) and the rotating bracket (40). A rotating bracket connecting bar (42) is formed on the rotating bracket (40), and the main bracket stopper (38) can elastically support the rotating bracket connecting bar (42). The main bracket stopper (38) can enable the relative rotation of the main bracket (32) and the rotating bracket (40) to be possible only in one direction, despite the rotational force of the main bracket torsion elastic part (34). That is, the relative rotation of the rotating bracket (40) can be limited by selectively contacting the main bracket stopper (38) and the rotating bracket connecting bar (42).

[0052] A door closing shock absorption device (30) according to an embodiment of the present invention may further include a mounting bracket (50) coupled to the rotating bracket (40) so as to be rotatable relative to it, and a mounting bracket torsion elastic member (52) that elastically supports the relative rotation of the rotating bracket (40) and the mounting bracket (50). A mounting bracket rotation axis (56) may be provided between the rotating bracket (40) and the mounting bracket (50) to enable relative rotation of the rotating bracket (40) and the mounting bracket (50). As shown in the drawing, the mounting bracket torsion elastic member (52) may be a spring-type torsion spring wound around the mounting bracket rotation axis (56) to elastically support the rotating bracket (40) and the mounting bracket (50), but is not limited thereto, and the mounting bracket torsion elastic member (52) may be configured in various forms, such as a plate-shaped torsion spring.

[0053] In the drawing, the main bracket torsion elastic part (34) and the mounting bracket torsion elastic part (52) are configured as two separate parts, but they are not limited to this and may be configured as a single torsion spring, etc.

[0054] The door closing shock absorption device (30) according to an embodiment of the present invention may further include a mounting bracket stopper (54) that limits the relative rotation of the rotating bracket (40) and the mounting bracket (50).

[0055] The door closing shock absorption device (30) according to an embodiment of the present invention may further include a shock absorption part (60) mounted on one end of the main bracket (32). The shock absorption part (60) may be made of various materials, such as rubber, silicone, or elastic plastic, and may mitigate the closing shock between the rear door (24) and the vehicle body (10) when the rear door (24) is closed.

[0056] FIG. 9 is a perspective view illustrating a door-closed state of a vehicle body to which a door-closed shock absorbing device and a door mechanism including the same according to an embodiment of the present invention can be applied, FIG. 10 is a perspective view illustrating a folded state of a door-closed shock absorbing device according to an embodiment of the present invention, and FIG. 11 is a drawing showing the operation of a door-closed shock absorbing device and a door mechanism including the same according to an embodiment of the present invention.

[0057] Referring to FIGS. 5 to 11, the door mechanism according to an embodiment of the present invention may include the door closing shock absorption device (30) according to the embodiment of the present invention described above.

[0058] The above mounting bracket (50) can be mounted on the door (20), that is, the rear door (24) shown in the drawing. However, it is not limited thereto, and it is obvious that it can also be applied to the front door (22) as a configuration to prevent impact between the door and the car body when the door is closed.

[0059] The door mechanism according to an embodiment of the present invention may further include a door receiving groove (26) formed concavely on the inner side of the door so as to receive the mounting bracket (50). That is, the mounting bracket (50) can be mounted on the rear door (24) through the door receiving groove (26).

[0060] The door receiving groove (26) can be formed in the lower part of the door (20).

[0061] A door mechanism according to an embodiment of the present invention may further include a body receiving groove (12) formed concavely in the body body, which selectively contacts the shock absorbing member (60). Just before the door (20) is closed, the shock absorbing member (60) contacts the body receiving groove (12) to absorb the shock, and when the door (20) is completely closed, the door closing shock absorbing device (30) can be received.

[0062] The main bracket (32) can rotate in the opposite direction to the sliding direction of the door (20) when the door is closed.

[0063] The above-mentioned rotating bracket (40) can rotate in the sliding direction of the door (20) when the door is closed.

[0064] That is, referring to FIG. 11, when the door (20), for example, the rear door (24), is closed, the rear door (24) moves forward of the vehicle body (10), and the rotating bracket (40) rotates relative to the front direction of the vehicle body (10) with respect to the mounting bracket rotation axis (56). That is, the rotating bracket (40) rotates clockwise with respect to the mounting bracket rotation axis (56).

[0065] When the door (20), for example, the rear door (24), is closed, the rear door (24) moves forward of the vehicle body (10), and the main bracket (32) rotates relative to the rear direction of the vehicle body (10) with respect to the main bracket rotation axis (39). That is, the main bracket (32) rotates counterclockwise with respect to the main bracket rotation axis (39).

[0066] When the door (20), for example, the rear door (24), is completely closed, the door closing shock absorber (30) can be received in the vehicle body receiving groove (12) and the door receiving groove (26).

[0067] When opening the door (20), for example, the rear door (24), the door closing shock absorber, for example, the shock absorber (60), is pushed by the main bracket torsion elastic part (34) and the mounting bracket torsion elastic part (52). Therefore, the vehicle occupant can easily open the door (20), for example, the rear door (24), without exerting much force.

[0068] As previously explained, according to the door closing shock absorption device and the door mechanism including the same according to an embodiment of the present invention, the shock can be absorbed when an opposing door is closed to prevent shaking of the door.

[0069] In addition, according to the door closing shock absorption device and the door mechanism including the same according to an embodiment of the present invention, the shock can be absorbed when a door is closed to suppress noise generation, thereby improving marketability.

[0070] In addition, according to the door closing shock absorption device and the door mechanism including the same according to an embodiment of the present invention, when opening the door, the vehicle occupant can easily open the door without exerting great force.

[0071] Although preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and includes all modifications within the scope recognized as equivalent that can be easily made by those skilled in the art from the embodiments of the present invention. Explanation of the symbols

[0072] 10: Vehicle body 12: Vehicle body receiving groove 20: Door 22: Front door 24: Rear door 26: Door receiving groove 30: Door closing shock absorber 32: Main bracket 34: Main bracket torsion elastic part 38: Main bracket stopper 39: Main bracket rotation axis 40: Rotating bracket 42: Rotating bracket connecting bar 50: Mounting bracket 52: Mounting bracket torsion elastic part 54: Mounting bracket stopper 56: Mounting bracket rotation axis 60: Shock absorber 130: Door mounting bracket 132: Guide striker

Claims

Claim 1 A door closing shock absorber comprising: a main bracket; a rotating bracket coupled to the main bracket so as to be rotatable relative to it; a main bracket torsion elastic member elastically supporting the relative rotation of the main bracket and the rotating bracket; and a main bracket stopper limiting the relative rotation of the main bracket and the rotating bracket; wherein a rotating bracket connecting bar is formed in the rotating bracket, and the main bracket stopper selectively contacts the rotating bracket connecting bar. Claim 2 delete Claim 3 A door closing shock absorber according to claim 1, further comprising: a mounting bracket rotatably coupled to the rotating bracket; and a mounting bracket torsion elastic member that elastically supports the relative rotation of the rotating bracket and the mounting bracket. Claim 4 A door closing shock absorber further comprising, in paragraph 3, a mounting bracket stopper that limits the relative rotation of the rotating bracket and the mounting bracket. Claim 5 A door closing shock absorbing device comprising, in claim 1, a shock absorbing member mounted on one end of the main bracket. Claim 6 A door mechanism comprising: a main bracket; a rotating bracket coupled to the main bracket so as to be rotatable relative to it; a main bracket torsion elastic member elastically supporting the relative rotation of the main bracket and the rotating bracket; a mounting bracket coupled to the rotating bracket so as to be rotatable relative to it; and a mounting bracket torsion elastic member elastically supporting the relative rotation of the rotating bracket and the mounting bracket; wherein the mounting bracket is mounted on a door, and the main bracket rotates in the opposite direction to the sliding direction of the door when the door is closed. Claim 7 A door mechanism further comprising, in claim 6, a main bracket stopper that limits the relative rotation of the main bracket and the rotating bracket. Claim 8 delete Claim 9 A door mechanism further comprising, in claim 6, a mounting bracket stopper that limits the relative rotation of the rotating bracket and the mounting bracket. Claim 10 delete Claim 11 A door mechanism further comprising, in claim 6, a door receiving groove formed concavely into the inner side of the door to accommodate the mounting bracket. Claim 12 In Clause 11, the door receiving groove is a door mechanism formed in the lower part of the door. Claim 13 A door mechanism further comprising, in claim 6, a shock absorbing member mounted on one end of the main bracket. Claim 14 A door mechanism according to claim 13, further comprising a body receiving groove formed concavely in the body and selectively contacting the shock absorbing part and the body body. Claim 15 delete Claim 16 In paragraph 6, the rotating bracket is a door mechanism that rotates in the sliding direction of the door when the door is closed. Claim 17 In paragraph 6, the above door is a door mechanism that is a facing door or a facing swing door. Claim 18 In paragraph 6, the above door is a door mechanism that is a rear door.

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