Safety belt buckle apparatus for vehicle

Abstract

The present invention discloses a buckle device for a vehicle seat belt. The disclosed vehicle seat belt buckle device is characterized by comprising: a body-fixing frame rotatably coupled to a vehicle body; a buckle-fixing frame coupled to a seat belt buckle and slidably coupled to the body-fixing frame to adjust its length; a buckle length adjustment part connected to the buckle-fixing frame to allow the buckle-fixing frame to move within the body-fixing frame; and a buckle rotation adjustment part connected to the body-fixing frame to allow the buckle-fixing frame to rotate. Accordingly, the present invention can adjust the length and direction of the protrusion from the vehicle body according to the user's physical characteristics and situation, thereby improving the convenience of use and safety of the seat belt.

Description

Technology Field

[0001] The present invention relates to a buckle device for a vehicle seat belt, and more specifically, to a buckle device for a vehicle seat belt that can adjust the length and direction of protrusion from the vehicle body according to the user's physical characteristics and situation, thereby improving the convenience of use and safety of the seat belt. Background Technology

[0003] Typically, vehicles may be equipped with seat belt systems corresponding to the number of occupants to ensure the safety of the driver and passengers. These seat belt systems secure the occupant's body to the seat in the event of an accident, thereby preventing the occupant from colliding with structures inside the vehicle and ensuring passenger safety.

[0004] For example, a seatbelt has the function of minimizing casualties by securing the occupant's upper body to the seat in the event of a collision while driving, thereby preventing them from hitting the instrument panel or other objects, in order to safely protect the driver and passengers in the event of a rear-end collision.

[0005] Specifically, the seat belt may include a buckle that is fixed to a seat of the vehicle body, a retractor on which a webbing for securing the occupant's body is wound, and a tongue provided to be coupled with the buckle to the webbing that is unwound from the retractor to a predetermined length.

[0006] In addition, the seatbelt device may be equipped with a separate Hall switch and an alarm switch within the buckle to detect whether the belt is worn, and sensors to detect the occupant's seating on the seat may be provided.

[0007] However, the conventional seat belt device described above has a problem of reduced convenience and safety because the position of the buckle, which is fixed to the vehicle body or seat, cannot be adjusted according to the occupant's physique and physical condition.

[0008] Therefore, there is a need to improve this.

[0009] Meanwhile, regarding technology related to vehicle buckles, Korean published patent No. 10-2019-0012290 (publication date: 2019.02.11) discloses a 'seat belt buckle length adjustment device,' and registered patent No. 10-1840194 (registration date: 2018.03.14) discloses a 'buckle anchor device and a seat belt device equipped therewith.' The problem to be solved

[0011] The present invention was created in response to the aforementioned necessity, and aims to provide a vehicle seat belt buckle device that can improve the convenience of use and safety of the seat belt by operating a buckle length adjustment unit and a buckle rotation adjustment unit according to the user's physical characteristics and situation, thereby allowing the length of the buckle fixing frame to be adjusted on the body fixing frame fixed to the vehicle body and rotating the body fixing frame. means of solving the problem

[0013] To achieve the above-mentioned objective, a buckle device for a vehicle seat belt according to one aspect of the present invention comprises: a body fixing frame rotatably coupled to a vehicle body; a buckle fixing frame coupled to a seat belt buckle and slidably coupled to the body fixing frame to adjust its length; a buckle length adjustment part connected to the buckle fixing frame to allow the buckle fixing frame to move within the body fixing frame; and a buckle rotation adjustment part connected to the body fixing frame to allow the body fixing frame to rotate.

[0014] In addition, the vehicle seat belt buckle device of the present invention is characterized by further including a buckle position control unit that controls the buckle length adjustment unit and the buckle rotation adjustment unit according to a control signal of an operation button provided on the buckle.

[0015] In addition, the vehicle body fixing frame in the present invention is characterized by having a guide groove portion formed therein to which the buckle fixing frame is slidably coupled, and both sides of the buckle fixing frame being inserted into the guide groove portion.

[0016] In addition, the buckle length adjustment unit in the present invention is characterized by comprising a saddle portion formed by bending at the lower end of the buckle fixing frame, and a first motor portion coupled to the vehicle body fixing frame by having a lead screw connected to the saddle portion.

[0017] In addition, the buckle rotation adjustment unit in the present invention is characterized by including a worm wheel coupled to the buckle fixing frame and a second motor unit fixed to the vehicle body by having a worm that meshes with the worm wheel.

[0018] In addition, the vehicle seat belt buckle device of the present invention is characterized by further including an extension / extension length adjustment part provided on the vehicle body fixing frame and the buckle fixing frame so as to be able to adjust the operating length of the buckle fixing frame.

[0019] In addition, the extension length adjustment part of the present invention is characterized by comprising a plurality of coupling holes formed spaced apart in the longitudinal direction of the buckle fixing frame, a support bolt coupled to the coupling holes, and a guide hole formed in the longitudinal direction of the vehicle body fixing frame through which the support bolt passes. Effects of the invention

[0021] As described above, unlike the prior art, the buckle device for a vehicle seat belt according to one aspect of the present invention can adjust the length of the buckle fixing frame on the body fixing frame fixed to the vehicle body according to the user's physical characteristics and situation, and can rotate the body fixing frame, thereby having the effect of improving the convenience of use and safety of the seat belt. Brief explanation of the drawing

[0023] FIG. 1 is an exploded perspective view for explaining a buckle device for a vehicle seat belt according to one embodiment of the present invention. FIG. 2 is a perspective view for explaining a buckle device for a vehicle seat belt according to one embodiment of the present invention. FIG. 3 is a side view illustrating a buckle device for a vehicle seat belt according to one embodiment of the present invention. FIG. 4 is a perspective view illustrating the operating state of a vehicle seat belt buckle device according to one embodiment of the present invention. FIG. 5 is a diagram illustrating the operating state of a vehicle seat belt buckle device according to one embodiment of the present invention. FIG. 6 is an enlarged cross-sectional view of a key part to explain the appearance / disappearance length adjustment part according to one embodiment of the present invention. Specific details for implementing the invention

[0024] Hereinafter, a preferred embodiment of a vehicle seat belt buckle device according to the present invention will be described with reference to the attached drawings. In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of explanation.

[0025] Furthermore, the terms described below are defined in consideration of their functions in the present invention, and these may vary depending on the intent or practice of the user or operator. Therefore, the definitions of these terms should be based on the content throughout this specification.

[0027] FIG. 1 is an exploded perspective view for explaining a buckle device for a vehicle seat belt according to an embodiment of the present invention, FIG. 2 is a perspective view for explaining a buckle device for a vehicle seat belt according to an embodiment of the present invention, and FIG. 3 is a side view for explaining a buckle device for a vehicle seat belt according to an embodiment of the present invention.

[0028] In addition, FIG. 4 is a perspective view illustrating the operating state of a vehicle seat belt buckle device according to one embodiment of the present invention, FIG. 5 is a front view illustrating the operating state of a vehicle seat belt buckle device according to one embodiment of the present invention, and FIG. 6 is an enlarged cross-sectional view illustrating a retractable length adjustment part according to one embodiment of the present invention.

[0029] Referring to FIGS. 1 to 6, a vehicle safety belt buckle device (100) according to one aspect of the present invention may largely include a vehicle body fixing frame (110), a buckle fixing frame (120), a buckle length adjustment part (130), a buckle rotation adjustment part (140), an extension / extension length adjustment part (150), and a buckle position control part (160), and a buckle (121) to which a tongue of webbing is selectively attached / detachable may be coupled to the buckle fixing frame (120).

[0030] In the vehicle seat belt buckle device (100) according to this embodiment, the height of the buckle (121) is adjusted as the buckle fixing frame (120) moves from the vehicle body fixing frame (110), and the buckle (121) can be rotated as the vehicle body fixing frame (110) rotates from the vehicle body. Through this, the position of the buckle (121) can be adjusted according to the physical characteristics and situation of the occupant, thereby improving the convenience of using the seat belt.

[0031] The body fixing frame (110) can be rotatably coupled to the body or seat frame, and the buckle (121) can be rotated together with the seat as it is selectively rotated by the buckle rotation control part (140). Additionally, the body fixing frame (110) may have a guide groove part (111) formed therein to which the buckle fixing frame (120) is slidably coupled, and both sides of the buckle fixing frame (120) can be inserted into the guide groove part (111) to slide.

[0032] A buckle fixing frame (120) can be slidably coupled to this body fixing frame (110), and the buckle fixing frame (120) is rotated together by the buckle rotation adjustment part (140).

[0033] Additionally, the body fixing frame (110) may have an opening (113) formed on one side for sliding movement of the buckle fixing frame (120).

[0034] A buckle fixing frame (120) can have a buckle (121) fixed to its upper portion, and its lower portion can be slidably inserted into a guide groove (111), and its length can be adjusted by sliding in the guide groove (111) by a buckle length adjustment portion (130). For example, both ends of the buckle fixing frame (120) can be slidably inserted into the guide groove (111), and its lower portion can be connected to a buckle length adjustment portion (130), and the length extending from the vehicle body fixing frame (110) can be adjusted by the buckle length adjustment portion (130).

[0035] The buckle length adjustment unit (130) can be connected to the buckle fixing frame (120) so as to allow the buckle fixing frame (120) to move in the guide groove (111) of the vehicle body fixing frame (110). This buckle length adjustment unit (130) can be selectively operated by the buckle position control unit (160).

[0036] Specifically, the buckle length adjustment unit (130) may include a saddle unit (131) formed by bending at the lower end of the buckle fixing frame (120), and a first motor unit (133) coupled to the vehicle body fixing frame (110) so as to be connected to the saddle unit (131). At this time, the operation of the first motor unit (133) may be selectively controlled by the buckle position control unit (160).

[0037] Additionally, the first motor part (133) may be equipped with a lead screw (133a) that is coupled by penetrating the saddle part (131), and the buckle fixing frame (120) can be moved from the vehicle body fixing frame (110) through the rotation of the lead screw (133a).

[0038] The buckle rotation control unit (140) according to the present embodiment may be provided on the vehicle body to rotate the vehicle body fixing frame (110) and connected to the vehicle body fixing frame (110). For example, the buckle rotation control unit (140) may include a worm wheel (141) coupled to one side of the lower part of the buckle fixing frame (120) and a second motor unit (143) provided on the vehicle body to rotate the worm wheel (141). At this time, the second motor unit (143) may be provided with a worm (143a) that meshes with the worm wheel (141) and may be selectively operated by the buckle position control unit (160).

[0039] Meanwhile, the vehicle body fixing frame (110) can be rotatably coupled to the vehicle body through a rotation axis so as to have the same rotation center as the rotation center of the worm wheel (141), and can be provided with a rotation guide roller part (115) at the bottom to guide rotation. At this time, the worm wheel (141) can be axially coupled to the rotation axis.

[0040] The rotation guide roller section (115) is guided by the vehicle body to guide the rotation of the vehicle body fixing frame (110). This prevents damage to the buckle rotation adjustment section (140) and allows the rotation of the vehicle body fixing frame (110), which rotates by the buckle rotation adjustment section (140), to be smooth. Additionally, since the rotation guide roller section (115) is guided by the vehicle body, damage to the rotation axis can be prevented.

[0041] The extension length adjustment unit (150) can adjust the operating length of the buckle fixing frame (120), for example, the length to which the buckle fixing frame (120) moves from the vehicle body fixing frame (110), according to the type of vehicle and the shape and form of the seat. That is, the extension length adjustment unit (150) can adjust the operating length of the vehicle body fixing frame (110) extending from the vehicle body fixing frame (110).

[0042] To this end, the protrusion / extrusion length adjustment part (150) may include a plurality of coupling holes (151) formed spaced apart in the longitudinal direction at the lower end of the buckle fixing frame (120), a support bolt (153) that penetrates the vehicle body fixing frame (110) and is coupled to the coupling holes (151), and a guide hole part (155) formed in the longitudinal direction on the vehicle body fixing frame (110) so that the support bolt (153) penetrates.

[0043] In this protrusion length adjustment section (150), the buckle fixing frame (120) can be prevented from detaching from the vehicle body fixing frame (110) as the support bolt (153) is supported by being caught in the guide hole section (155). Additionally, the protrusion length adjustment section (150) can shorten the protrusion length of the buckle fixing frame (120) protruding from the vehicle body fixing frame (110) by fixing the support bolt (153) to the upper side of the coupling hole section (151), and can lengthen the protrusion length of the buckle fixing frame (120) by connecting the support bolt (153) to the lower side of the coupling hole section (151).

[0044] Meanwhile, the vehicle safety belt buckle device (100) according to the present embodiment is provided with an operating button (121a) on the buckle (121) to control the first motor unit (133) of the buckle length adjustment unit (130) and the second motor unit (143) of the buckle rotation adjustment unit (140), and the buckle position control unit (160) outputs a control signal to control the buckle length adjustment unit (130) and the buckle rotation adjustment unit (140) respectively by means of a control signal generated by the operation of the operating button (121a).

[0045] The vehicle seat belt buckle device (100) according to the present invention, configured as described above, allows the user to adjust the length of the buckle fixing frame (120) and rotate it by operating the operating button (121a) according to the physical characteristics and situation of the user sitting on the seat. By doing so, the position of the buckle (121) fixed to the buckle fixing frame (120) can be adjusted in various ways, thereby improving the convenience of use and safety of the seat belt.

[0046] Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom.

[0047] Therefore, the true technical scope of protection of the present invention should be determined by the patent claims. Explanation of the symbols

[0049] 100: Vehicle seat belt buckle device 110: Vehicle body fixing frame 111 : Guide groove 113 : Opening 115: Rotating guide roller part 120: Buckle fixing frame 121 : Buckle 121a : Control button 130: Buckle length adjustment part 131: Saddle part 133 : 1st motor section 133a : Lead screw 140: Buckle rotation adjustment part 141: Worm wheel 143 : 2nd motor section 143a : Worm 150: Appearance / Retraction Length Adjustment Part 151: Connection Hole Part 153 : Support bolt 155 : Guide elongated hole

Claims

Claim 1 A vehicle safety belt buckle device comprising: a body fixing frame rotatably coupled to a vehicle body; a buckle fixing frame coupled to a buckle of a safety belt and slidably coupled to the body fixing frame to adjust its length; a buckle length adjustment part connected to the buckle fixing frame to allow the buckle fixing frame to move within the body fixing frame; and a buckle rotation adjustment part connected to the body fixing frame to allow the body fixing frame to rotate, wherein the body fixing frame comprises an extension / extension length adjustment part capable of adjusting the operating length of the buckle fixing frame, and the extension / extension length adjustment part comprises a plurality of coupling holes formed spaced apart in the longitudinal direction of the buckle fixing frame; a support bolt coupled to the coupling holes; and a guide hole formed in the longitudinal direction of the body fixing frame through which the support bolt passes. Claim 2 A vehicle seat belt buckle device according to claim 1, further comprising a buckle position control unit that controls the buckle length adjustment unit and the buckle rotation adjustment unit according to a control signal of an operation button provided on the buckle. Claim 3 A vehicle safety belt buckle device according to claim 1 or 2, wherein the body fixing frame has a guide groove formed therein to which the buckle fixing frame is slidably coupled, and both sides of the buckle fixing frame are inserted into the guide groove. Claim 4 A vehicle safety belt buckle device according to claim 3, wherein the buckle length adjustment part comprises: a saddle part formed by bending at the lower end of the buckle fixing frame; and a first motor part coupled to the vehicle body fixing frame by having a lead screw connected to the saddle part. Claim 5 A vehicle safety belt buckle device according to claim 3, wherein the buckle rotation adjustment unit comprises: a worm wheel coupled to the buckle fixing frame; and a second motor unit fixed to the vehicle body having a worm engaged with the worm wheel. Claim 6 delete Claim 7 delete

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