KR102641535B1 - A device for fixing the crossbar of a vehicle roof rack - Google Patents

Abstract

The present invention relates to a vehicle roof rack crossbar fixing device that can easily install a roof rack crossbar in a vehicle without roof rails and at the same time ensure safety. A rail provided longitudinally between the door frame and the roof panel of the vehicle. A first bracket is provided with an insertion piece that fits into a groove, is bent from the insertion piece to form a first inclined surface at a certain angle with the horizontal plane, and has a coupling portion for coupling with a crossbar on an upper part of the inclined surface, and bending of the door frame. A second bracket is provided with a locking piece that catches on the surface, forms a second inclined surface that is bent and extended from the locking piece, and has a contact piece that contacts the first inclined surface on an upper part of the second slope, and the first bracket includes When the bolt and nut are screwed together through the fastening hole provided on the inclined surface and the second inclined surface, the space between the first bracket and the second bracket is tightened, so that the door frame of the vehicle can be fixed.

Description

Vehicle roof rack crossbar fixing device {A DEVICE FOR FIXING THE CROSSBAR OF A VEHICLE ROOF RACK}

The present invention relates to a vehicle roof rack crossbar fixing device, and particularly to a vehicle roof rack crossbar fixing device for fixing the roof rack crossbar to the roof of a vehicle that does not have basic roof rails installed.

Roof Rack is a device that allows objects to be transported to the top of a vehicle without the design of the car's trunk and cargo restrictions. Recently, it has been used to install and transport various equipment such as sports equipment, tents and awnings for camping, etc. .

The roof rack consists of a crossbar installed in the width direction of the vehicle and a fixing device to secure it. In the case of vehicles such as SUVs, the method of fixing to roof rails mounted longitudinally on both sides of the roof is mainly used.

On the other hand, in the case of vehicles where roof rails are not installed or where roof rails are difficult to install due to structural reasons, the roof rack can be installed in a different way than above. For example, Publication Patent No. 10-2020-0112140 discloses a vehicle roof bar fixing device that is fixed to the window frame of a vehicle.

However, in the above conventional technology, the roof bar is supported by simply hanging two hooks provided on both ends of the roof bar on both window frames of the vehicle. Installation may be simple, but the force holding the roof bar is weak, so the roof bar may break while the vehicle is driving. There is a serious problem in terms of safety as there is a possibility that it can easily come off and there is a risk of a major accident due to this.

The technical problem that the present invention aims to solve is to provide a vehicle roof rack crossbar fixing device that can easily install a roof rack crossbar in a vehicle without roof rails and at the same time ensure safety.

The roof rack crossbar fixing device according to the present invention for solving the above-mentioned technical problem is for fixing the roof rack crossbar to a vehicle without roof rails, and is installed in a rail groove provided in the longitudinal direction between the door frame and the roof panel of the vehicle. A first bracket is provided with an insertion piece to be fitted, and is bent from the insertion piece to form a first inclined surface at a certain angle with the horizontal plane, and has a coupling portion for coupling with the crossbar at the upper part of the inclined surface, and is attached to the bent surface of the door frame. It is provided with a locking piece, forms a second inclined surface that is bent and extended from the locking piece, and includes a second bracket having a contact piece in contact with the first inclined surface on an upper part of the second inclined surface, wherein the first inclined surface and When the bolt and nut are screwed together through the fastening hole provided on the second inclined surface, the space between the first bracket and the second bracket is tightened, so that the door frame of the vehicle can be fixed.

Depending on the embodiment, a fastening auxiliary plate may be formed on the second inclined surface so that the bolt has an inclination parallel to the upper surface of the door frame when the screw is coupled.

According to the embodiment, a stopper protrusion formed to protrude vertically from the contact piece is inserted into a stopper hole provided at the top of the first inclined surface, and the stopper hole is formed to a predetermined length along the first inclined surface, so that when the screw is coupled, The distance at which the stopper protrusion can move upward along the stopper hole may be limited.

According to the vehicle roof rack crossbar fixing device according to the present invention, the installation structure is simple, so anyone can easily assemble it, and the roof rack can be held more firmly by tightening the door frame on both the left and right sides of each door frame using a clamp method, thereby improving vehicle operation. Safety can be ensured.

Additionally, by limiting the maximum amount of bolt tightening for clamping, deformation or damage to the car body due to excessive tightening can be prevented.

In addition, tensile strength can be maximized by designing the insertion slope of the bolt to match the shape or curvature of the upper part of the door frame.

1 is a diagram showing a roof rack according to an embodiment of the present invention.
Figure 2 is a diagram showing a portion of a roof rack installed on a vehicle according to an embodiment of the present invention.
Figure 3 is a front perspective view showing a fixing device according to an embodiment of the present invention.
Figure 4 is a side view of a fixing device according to an embodiment of the present invention.
Figure 5 is a rear perspective view of a fixing device according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings attached to this specification.

Figure 1 is a diagram showing a roof rack according to an embodiment of the present invention, and Figure 2 is a diagram showing a portion of the roof rack according to an embodiment of the present invention installed on a vehicle.

Referring to Figures 1 and 2, the roof rack 10 according to the present invention includes a crossbar 20 and a fixing device 30.

The roof rack 10 according to the present invention is installed in a vehicle that is not equipped with roof rails that are installed longitudinally on both sides of the vehicle roof panel. That is, as shown in FIG. 2, the fixing devices 30 coupled on both sides of the crossbar 20 are directly fixed to the vehicle door frame 1, thereby eliminating the need for a separate roof rail.

Here, the door frame 1 is in contact with the roof panel 2 among the elements forming the body frame of the vehicle and is between vehicle pillars (e.g., A-pillar and B-pillar, B-pillar and C-pillar, or A-pillar and C-pillar). It may mean the part that connects. In addition, in order to install the roof rack 10 according to the present invention, a rail groove 3 must be formed in the longitudinal direction of the vehicle at the point where the door frame 1 and the roof panel 2 are connected, and the door frame 1 must be A bent surface (4) formed by bending inward must be provided so that the door can be seated.

That is, the fixing device 30 according to the present invention holds the part of the door frame (1) between the rail groove (3) and the bent surface (4) tightly like a clamp, replacing the conventional method of fixing it by hanging only on both door frames. Compared to other materials, it has excellent bonding strength and safety.

Figure 3 is a front perspective view showing a fixing device according to an embodiment of the present invention, Figure 4 is a side view of a fixing device according to an embodiment of the present invention, and Figure 5 is a rear perspective view of a fixing device according to an embodiment of the present invention. .

Referring to Figures 3 to 5, the fixing device 30 is attached to the roof side of the vehicle door frame 1, that is, the first bracket 100 that holds the inner wall of the rail groove 3 and the door side of the vehicle door frame 1. That is, it can be divided into a second bracket 200 that holds the bent surface 4, and the first bracket 100 and the second bracket 200 are screwed using bolts 300 and nuts 310 on both sides. Through the combination, the vehicle door frame (1) can be clamped by pulling each other.

The lower end of the first bracket 100 is provided with an insertion piece 110 that is inserted into the rail groove 3 of the vehicle roof and is in close contact with one inner wall of the rail groove 3. When the fixing device 30 is clamped, the insertion piece 110 comes into closer contact with the inner wall and applies pressure. At this time, it prevents separation from the rail groove 4 and follows the bottom surface of the rail groove 4 for proper alignment. It can be extended and implemented in an 'L' shape.

The first inclined surface 120 that is bent and extended from the insert piece 110 is formed to form a certain angle with the horizontal plane, that is, the roof panel 2. At this time, when considering ease of coupling with the second bracket 200 or tensile strength, the inclination angle is preferably between approximately 60° and 80°.

Inside the first inclined surface 120, a stopper hole 126 is formed into which the first fastening hole 125 and the stopper protrusion 235 of the second bracket 200, which will be described later, are inserted.

The first fastening hole 125 is located at the lower center of the first slope 120, and a pair of supports on which the nut 310 can be seated are located on both sides of the first fastening hole 125 on the rear side of the first slope 120. (310) is formed to protrude. At this time, the nut 310 may be a circular nut penetrating the outer peripheral surface of the cylinder and having a thread formed therein, taking into account the convenience of fastening and the inclination angle.

The stopper hole 126 is formed at a certain length along the center line at the upper part of the first inclined surface 120. When the bolt 300 is tightened so that the fixing device 30 clamps the door frame 1, the stopper hole 126 provides space for the inserted stopper protrusion 235 to move upward and at the same time provides a distance over which it can move. By limiting , it is possible to provide a guide to the amount of bolt tightening that can secure maximum tensile strength while preventing deformation or damage to the vehicle door frame due to excessive bolt tightening.

A coupling portion 130 is provided at the upper end of the first slope 120 for coupling with the crossbar 20, and the coupling portion 130 is implemented in various forms depending on the size or shape of the crossbar 20 and the coupling means. It can be.

The lower end of the second bracket 200 is provided with a locking piece 210 that is in close contact with the curved surface 4 of the vehicle door frame 1, and the second inclined surface 220 is bent and extended from the locking piece 210. .

At this time, the second inclined surface 220 may be formed to have a lower inclination angle than the first inclined surface 120, and the upper end of the second inclined surface 230 has a contact piece ( 230) can be provided.

The contact piece 230 is formed with a stopper protrusion 235 that protrudes in the vertical direction of the surface in contact with the second inclined surface. As described above, the stopper protrusion 235 is connected to the stopper hole 126 of the first bracket 100. is inserted.

The contact piece 230 maintains a stationary state in close contact with the first inclined surface 120 due to friction when the bolt 300 is tightened, and as the tightening amount of the bolt 300 gradually increases, the first inclined surface 120 ), some pushing may occur along the line. At this time, the stopper protrusion 235 also rises within the stopper hole 126, and when it moves a certain distance, the stopper protrusion 235 is blocked by the inner wall of the stopper hole 126 and no further pushing occurs.

A second fastening hole 225 is formed inside the second inclined surface 220. A bolt 300 may be inserted through the first fastening hole 125 and the second fastening hole 225 at the front of the second inclined surface 220, and the inserted bolt 300 may be inserted into the first inclined surface 110. It is screwed together with a nut 310 provided on the rear of the.

At this time, the bolt 300 is inserted obliquely with respect to the first inclined surface 120 and the second inclined surface 220. In other words, the bolt 300 may be inserted at least perpendicularly to the second inclined surface 220 by adjusting the positions of the first fastening hole 125 and the second fastening hole 126, but the fixing device 30 In order to maximize the force holding the door frame 1, that is, the tensile strength, it is preferable that the bolt 300 is inserted with an inclination parallel to the upper surface of the door frame 1. For example, as shown in FIG. 4, it can be inserted in a state slightly tilted downward from the horizontal in accordance with the inclination of the plane connecting the bent surface 4 of the door frame 1 and the inner wall surface of the rail groove 3.

For this purpose, a fastening auxiliary plate 240 that is perpendicular to the direction in which the bolt 300 is inserted needs to be formed on the front of the second inclined surface 220. The fastening auxiliary plate 240 is provided with a fastener through which the bolt 300 penetrates, and may be extended in a curved shape to be integrally formed with the second inclined surface 220 to reinforce support.

In the above, the present invention has been described with reference to the embodiments shown in the drawings, but these are merely illustrative, and those skilled in the art will understand that various modifications and other equivalent embodiments are possible therefrom. will be. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the attached claims.

1: Door frame 2: Roof panel
3: Rail groove 4: Bend surface
10: Roof rack 20: Crossbar
30: Fixing device 100: First bracket
110: Insert 120: First slope
125: first fastening hole 126: stopper hole
130: Coupler 200: Second bracket
210: Jamming piece 220: Second slope
225: fastening hole 230: contact piece
235: stopper projection 240: fastening auxiliary plate
300: bolt 310: nut

Claims (3)

In the roof rack crossbar fixing device (30) for fixing the roof rack crossbar to a vehicle without roof rails installed,
An insertion piece (110) is provided that is inserted into a rail groove (3) provided in the longitudinal direction between the door frame (1) and the roof panel (2) of the vehicle, and is bent at the insertion piece to form a certain angle with the horizontal plane and forms a first inclined surface. A first bracket (100) forming (120) and having a coupling portion (130) for coupling with the crossbar (20) at the upper part of the first slope,
A locking piece 210 is provided that hangs on the bent surface 4 of the door frame, and forms a second inclined surface 220 that is bent and extended from the locking piece, and is in contact with the first slope on the upper part of the second slope. It includes a second bracket 200 on which a contact piece 230 is provided,
When the bolt 300 and the nut 310 are screwed together through the fastening holes 125 and 225 provided on the first and second slopes, the space between the first bracket and the second bracket is tightened, thereby tightening the vehicle. It is fixed to the door frame (1),
A fastening auxiliary plate 240 is formed on the second inclined surface 220 so that the bolt 300 has an inclination parallel to the upper surface of the door frame 1 when screwed,
A stopper protrusion 235 that protrudes vertically from the contact piece 230 is inserted into the stopper hole 126 provided at the top of the first slope,
The stopper hole 126 is formed to a predetermined length along the first inclined surface, and limits the distance that the stopper protrusion can move upward along the stopper hole when the screw is coupled.
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