KR102514563B1 - Hinge apparatus for vehicle frunk - Google Patents

Abstract

The present invention relates to a hinge apparatus for a vehicle frunk, and more specifically, to a hinge apparatus for a vehicle frunk, which is provided between a frunk main body unit having an accommodating space unit therein, and a cover unit provided at the upper end of the frunk main body unit, so as to rotate the cover unit from the frunk main body unit to selectively open and close the accommodating space unit. To this end, the present invention is characterized by comprising: a rotating hinge bracket which is fixed at the cover unit and is rotated along with the cover unit around the shaft of a first shaft insertion hole formed at one side; a fixing hinge bracket which has a pair of second shaft insertion holes arranged to be close to both sides of the first shaft insertion hole to extend the central shaft of the first shaft insertion hole, and is fixed at one side of the upper end of the frunk main body; a hinge shaft assembly which penetrates the first shaft insertion hole and the second shaft insertion holes to be inserted and pivot-coupled; and a rotation location maintaining unit of which one side is fixed at the fixing hinge bracket, and the other side comes in contact with one end of the other side of the second shaft insertion holes of the hinge shaft assembly to be coupled to provide a predetermined contact friction force when the rotating hinge bracket is rotated. Therefore, the opened and closed state of the vehicle frunk may be efficiently maintained.

Description

Hinge apparatus for vehicle frunk {Hinge apparatus for vehicle frunk}

The present invention relates to a hinge device for a vehicle frunk, in which the cover portion of a vehicle trunk can remain open or closed by a certain amount without being closed by itself due to its own weight after the cover portion of the vehicle trunk is rotated and opened by a certain amount. will be.

In general, the driving system of an automobile is a midship engine (MR; Midship Engine Rear Wheel Drive) disposed in the center of the body or a rear midship engine (RMR; Rear Wheel Drive) disposed in the rear portion of the body. In this case, since it is difficult to provide a space for storing luggage in the rear body, a trunk space is formed in the front body.

The front body of the vehicle is a skeletal structure located in the front along the longitudinal direction of the vehicle to form an engine room. It includes a front fender apron member that forms both left and right sides and provides a space in which a suspension device is installed and a wheel is installed, a dash panel located at the rear of the engine room to partition the passenger compartment and the engine room, and the like.

On the other hand, in recent electric vehicles, a motor with a reduced volume is mounted in the engine room instead of an engine, and the remaining space is used as a cargo space called a frunk.

1 is a perspective view showing a general frunk mounted on a front body of a vehicle.

The frunk 10 is generally detachably coupled to the front body 1 of the vehicle, and is used as a storage box for storing charging cables required for charging the electric vehicle or items necessary for various maintenance of the vehicle.

Most of the conventional frunks 10 generally do not have a cover, but recently, some frunks with a cover have been released to prevent loss or damage of items stored in the receiving space inside the frunk. situation is going on.

However, in the case of the frunk having the cover part, since the cover part tends to close downward by its own weight so as to close the inner accommodating space in a state in which the cover part of the upper plate is opened, the user may use the cover when storing or taking out items in the accommodating space. It was inconvenient to have to hold the lid part by hand so that the part does not close.

On the other hand, in accordance with the inconvenience described above, there is a case where a user tilts the cover part backward as much as possible to keep it from automatically returning so that the cover part does not close by itself. In this process, an excessive load is applied to the hinge device of the cover part, resulting in the hinge device It is a major cause of failure.

In addition, among conventional frunks, there is a case in which a locking means is provided to lock the lid in a closed state. In this case, in general, an elastic member such as a torsion spring is added to naturally rotate and open the lid when unlocking, but by additional parts. There is a problem of increasing manufacturing cost.

On the other hand, in the case where there is no locking means (lever) of the cover part of the conventional frunk, it is necessary to maintain the frictional force of the hinge device to prevent the cover part from descending for all open sections of the cover part. development is insufficient.

Republic of Korea Patent Publication No. 2021-0076649 (2021.06.24. Publication) Korean Registered Patent No. 10-2273991 (registered on July 1, 2021)

SUMMARY OF THE INVENTION An object of the present invention is to provide a hinge device for a vehicle frunk in which the cover portion of a vehicle trunk can be supported in an open state without being closed by its own weight after the cover portion of the vehicle trunk is pivotally opened.

Another object of the present invention is to provide a hinge device for a vehicle trunk capable of efficiently maintaining an open/closed state of a vehicle trunk while excluding expensive parts such as a torsion spring applied to a conventional vehicle trunk lid hinge device.

In order to achieve the above object, according to an embodiment, a hinge device for a vehicle frunk of the present invention is provided between a trunk body having an accommodation space therein and a cover at an upper end of the trunk body, so that the cover is removed from the trunk body. A hinge device for a vehicle trunk that selectively opens and closes an accommodating space by rotating a portion, comprising: a rotating hinge bracket that is fixed to the cover and rotates together with the cover about an axis of a first shaft insertion hole formed at one side; a fixed hinge bracket having a pair of second shaft insertion holes disposed close to both sides of the first shaft insertion hole to extend a central axis of the first shaft insertion hole and fixed to one side of an upper end of the trunk body; a hinge shaft assembly that is inserted and pivotally coupled through the first shaft insertion hole and the second shaft insertion hole; and a pivoting position holding unit having one side fixed to the fixed hinge bracket and the other side being in close contact with one end opposite to the second shaft insertion hole of the hinge shaft assembly to have a predetermined contact frictional force when the rotating hinge bracket rotates; It is composed of.

Also, according to one embodiment, the hinge shaft assembly may include an insert bushing inserted into the first shaft insertion hole; a pair of side bushings each fitted to both sides of the first shaft insertion hole in a state where the insert bushing is inserted; and a pair of hinge shafts inserted through the hollow of the side bushings in a state where the second shaft insertion holes of the fixing hinge brackets are inserted into the outer circumferential surface of each side bushing.

In addition, according to one embodiment, the pivot position holding part has one side fixed to the fixed hinge bracket, a gripping groove is formed on the other side, and the gripping groove is in close contact with one end opposite to the second shaft insertion hole of the hinge shaft assembly Friction guide; and a friction shaft fixing one side of the friction guide to the fixed hinge bracket by penetrating and coupling one side of the friction guide and the fixed hinge bracket.

In addition, according to one embodiment, the gripping groove of the friction guide is formed in a hook shape surrounding the outer circumferential surface of the hinge shaft, so that when the rotating hinge bracket rotates, the inner surface of the gripping groove is in advance with the cylindrical body of the hinge shaft. Close contact is made to have a predetermined frictional force.

According to another embodiment, the gripping groove of the friction guide is formed in the shape of a tong that surrounds the outer circumferential surface of the hinge shaft, so that the inner surface of the gripping groove is in advance with the cylindrical body of the hinge shaft when the rotating hinge bracket rotates. Close contact is made to have a predetermined frictional force.

In addition, according to one embodiment, the rotation hinge bracket and the fixed hinge bracket are formed in the shape of a plate of synthetic resin material, and at least one insert nut is inserted into the middle portion to be screwed to the cover portion and the trunk body portion. .

In addition, according to one embodiment, a protrusion-shaped stopper is further formed on an outer circumferential surface of the fixed coupling part of the fixed hinge bracket, so that one side of the rotating hinge bracket is caught by the stopper to prevent further rotation when the rotating hinge bracket rotates.

In addition, according to one embodiment, at least one of the inner surface of the first shaft insertion hole or the outer surface of the insert bushing is formed with a knurled surface, thereby fixing the insert bushing inserted into the first shaft insertion hole.

In addition, according to an embodiment, a knurled surface is formed on at least one of an inner surface of the insert bushing or an outer surface of the hinge shaft inserted into the insert bushing, so that the hinge shaft inserted into the insert bushing is fixed.

In addition, according to one embodiment, a flange is further integrally formed on the outer circumferential surface of the side bushing, and the flange is fixed while being inserted between the first shaft insertion hole and the second shaft insertion hole.

In addition, according to one embodiment, a sealing member is provided on an upper edge of the frunk body, and a locking part for selectively locking the cover in a closed state is further provided at one side of an upper edge of the frunk body.

In addition, according to one embodiment, at least one tension groove is further added to the inner or outer surface of the gripping groove, so that the inner surface of the gripping groove is in advance with the cylindrical body of the hinge shaft when the rotating hinge bracket rotates. Close contact is made to have a predetermined frictional force.

In addition, according to one embodiment, at least one lubricant groove is further added to the inner surface of the gripping groove, so that the inner surface of the gripping groove exerts a predetermined frictional force with the cylindrical body of the hinge shaft when the rotating hinge bracket rotates. close contact to have

According to the present invention, when the rotating hinge bracket rotates with respect to the fixed hinge bracket, the friction guide generates an even contact frictional force along the surface of the cylindrical body of the hinge shaft to maintain a stable rotational position over the entire range of the rotation radius of the rotating hinge bracket. Accordingly, when the cover part is opened and rotated from the vehicle frunk by the user, it is possible to prevent the cover part from being closed by itself due to gravity for all open rotation sections.

In addition, the present invention can expect structural simplification and cost reduction by removing the configuration of the torsion spring from the hinge device for the conventional vehicle trunk, and the removal of the torsion spring reduces wear due to frictional force generated by the elasticity of the torsion spring This can improve the durability of the device.

In addition, the present invention has a structure in which the hinge shaft coupling the trunk body in a rotatable state with the cover is easily separated from the parent hinge device, so that the hinge device can be easily disassembled in the event of a malfunction or poor assembly, making work convenient sex is improved

1 is a perspective view showing a typical frunk mounted on a front body of a vehicle;
2 is a perspective view showing a vehicle frunk to which the present invention is applied as a whole
3 is a perspective view of a hinge device for a vehicle trunk according to a first embodiment of the present invention;
4 is an exploded perspective view of a hinge device for a vehicle trunk according to a first embodiment of the present invention;
Figure 5 is a plan view of the rotation position holding unit according to the first embodiment of the present invention
6 is a view showing an example of a rotation operation of the rotating hinge bracket according to the first embodiment of the present invention;
7 is a perspective view of a hinge device for a vehicle trunk according to a second embodiment of the present invention;
Figure 8 is a plan view of the rotation position holding unit according to the second embodiment of the present invention
9 is a view showing an example of a rotational operation of the rotating hinge bracket according to the second embodiment of the present invention;

Hereinafter, a hinge device for a vehicle trunk according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a perspective view showing a vehicle frunk to which the present invention is applied as a whole.

First, referring to FIG. 2, a vehicle frunk 10 to which the present invention is applied includes a frunk body portion 11 having an accommodation space 11a therein, and a cover portion that can be opened and closed on top of the frunk body portion 11 ( 12), and selectively opening and closing the accommodating space 11a of the trunk body 11 by holding the cover 12 by hand and rotating it between the trunk body 11 and the cover 12. A hinge device 100 for a vehicle frunk is provided.

In addition, since the locking part 13 is provided in the frunk body part 11 on the opposite side of the hinge device 100, the cover part 12 is inserted into the trunk body part 11 in the closed state of the cover part 12. can be selectively locked.

In addition, the upper edge of the frunk body portion 11 prevents moisture from penetrating into the accommodation space portion 11a of the frunk body portion 11 while the cover portion 12 is closed, while the cover portion and A sealing member 14 may be further provided to absorb shock between the trunk body parts.

Hereinafter, a hinge device for a vehicle trunk according to a first embodiment of the present invention will be described with reference to FIGS. 3 to 6 .

3 is a perspective view of a hinge device for a vehicle trunk according to a first embodiment of the present invention, and FIG. 4 is an exploded perspective view of a vehicle trunk hinge device according to a first embodiment of the present invention. 1 is a plan view of the pivoting position holding unit according to the first embodiment, and FIG. 6 is a view showing an example of a rotation operation of the rotating hinge bracket according to the first embodiment of the present invention.

As shown, in the hinge device 100 for a vehicle trunk according to the first embodiment of the present invention, first, a rotating hinge bracket 110 is coupled to the cover portion 12, and one side of the rotating hinge bracket 110 The rotary coupling part 111 is integrally formed, and the first shaft insertion hole 111a is formed inside the rotary coupling part 111.

4, a fixed hinge bracket 120 is hinged to the first shaft insertion hole 111a of the rotating hinge bracket 110, and the fixed hinge bracket 120 is a frunk body part ( 11), a pair of first shaft insertion holes 111a disposed close to both sides of the first shaft insertion hole 111a so as to extend the central axis of the first shaft insertion hole 111a on one side of the fixing hinge bracket 120. Two axis insertion holes 121a are formed.

The rotating hinge bracket 110 and the fixed hinge bracket 120 may be formed in the shape of a plate of synthetic resin material, and the central portion of the plate of synthetic resin material is screwed to the cover part 12 and the trunk body part 11, respectively. Two insert nuts (IN) are disposed on each of the rotating hinge bracket 110 and the fixed hinge bracket 120 so as to be fixed.

In addition, a protrusion-shaped stopper 123 is formed on the outer circumferential surface of the second shaft insertion hole 121a of the fixed hinge bracket 120. When the rotating hinge bracket 110 is rotated, one side of the rotating hinge bracket 110 is caught by the stopper 123, thereby blocking the rotating hinge bracket 110 from further rotating.

That is, as shown by phantom lines in FIGS. 6 and 9 , when the cover part 12 is lifted upward from the trunk body part 11 and rotated about 90 degrees, one side of the rotating hinge bracket 110 is the stopper 123 ) and cannot rotate any further.

In addition, a hinge shaft assembly 130 is inserted and pivotally coupled through the first shaft insertion hole 111a and the second shaft insertion hole 121a of the rotation hinge bracket 110 .

According to one embodiment, the hinge shaft assembly 130 includes an insert bushing 131 inserted into the first shaft insertion hole 111a, and a first shaft insertion hole ( 111a) and a pair of side bushings 132 fitted on both sides, and the side bushings ( 132) may be configured to include a pair of hinge shafts 133 inserted through the hollow.

At this time, a knurling surface (KS) is formed on at least one of the inner surface of the first shaft insertion hole 111a or the outer surface of the insert bushing 131, so that the first shaft insertion hole 111a The press-fitted insert bushing 131 is fixed.

In addition, a knurled surface KS is formed on at least one of the inner surface of the insert bushing 131 or the outer surface of the hinge shaft 133 inserted into the insert bushing 131, so that the insert bushing 131 is press-fitted The hinge shaft 133 is fixed.

Meanwhile, a flange 132a is integrally formed on the outer circumferential surface of the side bushing 132, and the flange 132a is fixed in a state of being inserted between the first shaft insertion hole 111a and the second shaft insertion hole 121a. do.

4, the knurled surface KS prevents slipping on the inner surface of the first shaft insertion hole 111a, the inner or outer surface of the insert bushing 132, and the outer surface of the hinge shaft 133 It may be a groove formed by digging long horizontally to do so.

In addition, a pivoting position maintaining unit 150 is provided between the fixed hinge bracket 120 and the hinge shaft assembly 130 .

The rotating position holding part 150 has one side fixed to the fixed hinge bracket 120 and the other side in close contact with the end of the hinge shaft 133 exposed through the second shaft insertion hole 121a, so that the rotation When the hinge bracket 110 rotates, a predetermined contact frictional force is provided to the hinge shaft 133 .

According to one embodiment, the pivot position holding part 150 has one side fixed to the fixed hinge bracket 120 and a gripping groove 151a formed on the other side, and the gripping groove 151a is a hinge shaft assembly ( 130), the friction guide 151 in close contact with the opposite end of the second shaft insertion hole 121a, and one side of the friction guide 151 and the fixed hinge bracket 120 are penetrated and coupled to the friction guide 151. It may be composed of a friction shaft 152 that fixes one side to the fixed hinge bracket 120.

At this time, referring to FIGS. 4 and 5 , according to the first embodiment, the gripping groove 151a of the friction guide 151 may have a hook shape surrounding the outer circumferential surface of the hinge shaft 133 .

Accordingly, when the rotating hinge bracket 110 rotates, the inner surface 151b of the hook-shaped gripping groove 151a comes into close contact with the cylindrical body of the hinge shaft 133 to have a predetermined frictional force.

In addition, according to one embodiment, at least one tension groove 151c concavely recessed may be further added to the outer surface (no sign) of the hook-shaped gripping groove 151a.

Accordingly, when the rotating hinge bracket 110 rotates, tension force is further added by the tension groove 151c so that the inner surface 151b of the gripping groove 151a forms a predetermined contact with the cylindrical body of the hinge shaft 133. It is in close contact to have frictional force.

In addition, according to one embodiment, at least one lubricant groove 151d concavely recessed in a semicircular shape is further added to the inner surface 151b of the hook-shaped gripping groove 151a, and the lubricant groove 151d has For example, a lubricant such as grease may be filled.

Accordingly, when the rotary hinge bracket 110 rotates, lubricant is supplied from the lubricant groove 151d, so that the inner surface 151b of the gripping groove 151a exerts a predetermined frictional force with the cylindrical body of the hinge shaft 133. The frictional force is maintained constant by the lubricant supplied from the lubricant groove 151d.

Hereinafter, the process of assembling and installing the rotating hinge bracket, the fixed hinge bracket, and the hinge shaft assembly to the vehicle trunk will be described in detail.

First, after aligning the first shaft insertion hole 111a of the rotating hinge bracket 110 and the second shaft insertion hole 121a of the fixed hinge bracket 120, the first shaft insertion hole 111a and the second shaft insertion hole 111a By inserting the hinge shaft assembly 130 through the shaft insertion hole 121a, the rotating hinge bracket 110 and the fixed hinge bracket 120 are hinged.

At this time, before inserting the hinge shaft assembly 130 into the first and second shaft insertion holes 111a and 121a, the inner peripheral surface of the first shaft insertion hole 111a has a knurled surface KS. It is understandable that the insert nut 131 is press-fitted by interference fit, and the side bushing 132 having a knurled surface KS is press-fitted to the second shaft insertion hole 121a by interference fit. do.

In this state, as the hinge shaft assembly 130 is inserted through the first shaft insertion hole 111a and the second shaft insertion hole 121a, the rotating hinge bracket 110 rotates around the hinge shaft assembly 130. Possibly hinged.

Subsequently, the friction guides 151 of the pivoting position holding parts 150 are installed on both sides of the fixed hinge bracket 120, respectively.

In the process of installing the friction guide 151, first, the gripping groove 151a formed on one side of the friction guide 151 is inserted into the end of the hinge shaft 133 exposed on both sides of the second shaft insertion hole 121a. By making close contact, when the hinge shaft 133 rotates, frictional force is generated by contact with the inner surface of the gripping groove 151a, and then the other side of the friction guide 151 is fixed using the friction shaft 152 Through-coupled to both sides of the hinge bracket 120.

When the combination of the rotating hinge bracket 110 and the fixed hinge bracket 120 is completed as described above, the rotating hinge bracket 110 and the cover 12 are connected through the insert nut IN of the rotating hinge bracket 110. By screwing and screwing the fixed hinge bracket 120 and the trunk body 11 through the insert nut IN of the fixed hinge bracket 120, the hinge device 100 for the vehicle trunk of the present invention is finally Installation is complete.

Therefore, in a state in which the hinge device 100 for the vehicle trunk of the present invention is installed on the vehicle trunk 10 as described above, the friction guide 151 has a gripping groove 151a in close contact with the outer circumferential surface of the hinge shaft 133 Since it is in this state, it is understandable that a predetermined frictional force is provided to the hinge shaft 133.

That is, when the rotating hinge bracket 110 rotates with respect to the fixed hinge bracket 120, the friction guide 151 always provides an equal contact frictional force along the surface of the cylindrical body of the hinge shaft 130, so that the cover part 12 ) and the rotational hinge bracket 110 is not closed by itself due to its own weight in the entire rotational radius section, but can maintain its rotational position in a closed or open state by a certain amount.

That is, the posture of the cover part 12 is maintained in a state where the cover part 12 is opened or closed by a predetermined amount from the trunk body part 11 by the user.

In addition, in the hinge device 100 for a vehicle trunk according to the present embodiment, structural simplification and cost reduction can be expected by removing the configuration of the torsion spring from the conventional vehicle trunk hinge device.

In addition, as the torsion spring is removed, wear due to frictional force generated by elasticity of the torsion spring can be reduced, and thus durability of the device can be improved.

Hereinafter, a hinge device 200 for a vehicle trunk according to a second embodiment of the present invention will be described with reference to FIGS. 7 to 9 .

Descriptions of overlapping contents with those of the first embodiment will be omitted, and differences will be mainly described.

7 is a perspective view of a hinge device for a vehicle trunk according to a second embodiment of the present invention, FIG. 8 is a plan view of a pivoting position holding unit according to a second embodiment of the present invention, and FIG. 9 is a second embodiment of the present invention. It is a view showing an example of the rotation operation of the rotating hinge bracket according to.

The hinge device 200 for a vehicle trunk according to the second embodiment includes a rotating hinge bracket 210, a fixed hinge bracket 220, a hinge shaft assembly (not shown), and a pivoting position holding unit 250.

As shown in FIGS. 7 and 8 , the hinge device 200 for a vehicle trunk according to the second embodiment is the same except for the configuration of the pivoting position holding unit 250 .

That is, one side of the friction guide 251 of the rotational position holding unit 250 is fixedly coupled to the fixed hinge bracket 220 by the friction shaft 252, and the gripping groove 251a on the other side is connected to the rotating hinge bracket 210. It is contact-coupled to the outer circumferential surface of the hinge shaft 233 to have a predetermined contact frictional force during rotation of the hinge shaft 233 .

At this time, according to the second embodiment, the gripping groove 251a of the friction guide 251 may have a tong shape surrounding the outer circumferential surface of the hinge shaft 233 .

Accordingly, when the rotating hinge bracket 210 rotates, the inner surface 251b of the tong-shaped gripping groove 251a comes into close contact with the cylindrical body of the hinge shaft 233 to have a predetermined frictional force.

That is, as shown in FIG. 9 , when the rotating hinge bracket 210 rotates away from the fixed hinge bracket 220, the inner surface 251b of the gripping groove 251a is formed on the outer circumferential surface of the hinge shaft 233 in advance. Contact is made to provide frictional force.

In addition, according to one embodiment, at least one tension groove 251c concavely recessed may be further added to the inner surface 251b of the tongs-shaped gripping groove 251a.

Accordingly, when the rotating hinge bracket 210 rotates, tension force is further added by the tension groove 251c so that the inner surface 251b of the gripping groove 251a forms a predetermined contact with the cylindrical body of the hinge shaft 233. It is in close contact to have frictional force.

In addition, according to one embodiment, at least one lubricant groove 251d concavely recessed in a semicircular shape is further added to the inner surface 251b of the tongs-shaped gripping groove 251a, and the lubricant groove 251d has For example, a lubricant such as grease may be filled.

Accordingly, when the rotary hinge bracket 210 rotates, lubricant is supplied from the lubricant groove 251d, so that the inner surface 251b of the gripping groove 251a exerts a predetermined frictional force with the cylindrical body of the hinge shaft 233. The frictional force is maintained constant by the lubricant supplied from the lubricant groove 251d.

By forming the friction guide 251 of the rotation position holding part 250 according to the second embodiment into a tongs shape, compared to the hook-shaped friction guide 151 according to the first embodiment described above, the hinge shaft 233 A more even contact force can be transmitted to the outer circumferential surface.

That is, in the friction guide 251, the inner surface of the gripping groove 251a is coupled along the surface of the cylindrical body of the hinge shaft 233 to have an equal contact frictional force when the rotating hinge bracket 210 rotates.

As a result, when the rotational hinge bracket 210 rotates, the rotational position holding unit 250 of the hinge device 200 for a vehicle trunk according to the present embodiment has a lower hinge shaft 233 than the rotational position maintaining unit 150 of the first embodiment. ), it is possible to provide a more stable frictional force to the outer circumferential surface of the friction zone, and also to improve abrasion in the friction section.

What has been described above is only one embodiment for implementing the hinge device for a vehicle trunk according to the present invention, and the present invention is not limited to the above-described embodiments, and as claimed in the following claims, the present invention Anyone with ordinary knowledge in the field to which the present invention pertains without departing from the gist of the invention will say that the technical spirit of the present invention exists to the extent that various changes can be made.

10: vehicle frunk 11: frunk body part
12: cover part 100, 200: hinge device for vehicle frunk
110, 210: rotation hinge bracket 111, 211: rotation coupling part
111a, 211a: first shaft insertion hole 120, 220: fixed hinge bracket
121, 221: fixed coupling part 121a, 221a: second shaft insertion hole
123, 223: stopper 130: hinge shaft assembly
131: insert bushing 132: side bushing
133, 233: hinge shaft 150, 250: rotation position holding unit
151, 251: friction guide 151a, 251a: gripping groove
151b, 251b: inner surface (of the gripping groove) 152, 252: friction shaft
151c, 251c: tension groove 151d, 251d: lubricant groove
IN: Insert nut KS: Knurled face

Claims (13)

A hinge device for a vehicle trunk that is provided between a trunk body having an accommodation space therein and a cover at an upper end of the trunk body and selectively opens and closes the accommodation space by rotating the cover from the trunk body,
a rotating hinge bracket fixed to the cover and rotated together with the cover around an axis of a first shaft insertion hole formed at one side;
a fixed hinge bracket having a pair of second shaft insertion holes disposed close to both sides of the first shaft insertion hole to extend a central axis of the first shaft insertion hole and fixed to one side of an upper end of the trunk body;
a hinge shaft assembly that is inserted and pivotally coupled through the first shaft insertion hole and the second shaft insertion hole; and
a pivoting position holding part having one side fixed to the fixed hinge bracket and the other side closely contacting one end opposite to the second shaft insertion hole of the hinge shaft assembly and coupled to have a predetermined contact frictional force when the rotating hinge bracket rotates; include,
The hinge shaft assembly,
An insert bushing inserted into the first shaft insertion hole;
a pair of side bushings each fitted to both sides of the first shaft insertion hole in a state where the insert bushing is inserted; and
A pair of hinge shafts respectively inserted through the hollows of the side bushings in a state where the second shaft insertion holes of the fixed hinge bracket are fitted to the outer circumferential surfaces of the pair of side bushings,
Characterized in that the insert bushing inserted into the first shaft insertion hole is fixed by forming a knurled surface on at least one of the inner surface of the first shaft insertion hole or the outer surface of the insert bushing,
Hinge device for vehicle frunk. delete According to claim 1,
The rotational position holding unit,
a friction guide having one side fixed to the fixed hinge bracket, a gripping groove formed on the other side, and the gripping groove closely contacting one end opposite to the second shaft insertion hole of the hinge shaft assembly; and
A friction shaft fixing one side of the friction guide to the fixed hinge bracket by penetrating and coupling one side of the friction guide and the fixed hinge bracket.
Hinge device for vehicle frunk. According to claim 3,
The gripping groove of the friction guide,
Characterized in that it is formed in a hook shape surrounding the outer circumferential surface of the hinge shaft so that the inner surface of the gripping groove is in close contact with the cylindrical body of the hinge shaft to have a predetermined frictional force when the rotating hinge bracket rotates.
Hinge device for vehicle frunk. According to claim 3,
The gripping groove of the friction guide,
Characterized in that it is formed in a tong shape surrounding the outer circumferential surface of the hinge shaft, and the inner surface of the gripping groove is in close contact with the cylindrical body of the hinge shaft to have a predetermined frictional force when the rotating hinge bracket rotates.
Hinge device for vehicle frunk. According to claim 1,
The rotating hinge bracket and the fixed hinge bracket,
Characterized in that it has a structure in which at least one insert nut is inserted so that it is formed in a plate shape of synthetic resin material and can be screwed to the cover part and the frunk body part in the middle part, respectively.
Hinge device for vehicle frunk. According to claim 1,
Characterized in that a protrusion-shaped stopper is further formed on the outer circumferential surface of the fixed coupling part of the fixed hinge bracket so that one side of the rotating hinge bracket is not further rotated by the stopper when the rotating hinge bracket rotates.
Hinge device for vehicle frunk. delete According to claim 1,
Characterized in that the hinge shaft inserted into the insert bushing is fixed by forming a knurled surface on at least one of the inner surface of the insert bushing or the outer surface of the hinge shaft inserted into the insert bushing,
Hinge device for vehicle frunk. According to claim 1,
Characterized in that a flange is further integrally formed on the outer circumferential surface of the side bushing, and the flange is fixed in a state sandwiched between the first shaft insertion hole and the second shaft insertion hole,
Hinge device for vehicle frunk. According to claim 1,
A sealing member is provided at an upper edge of the frunk body,
Characterized in that, a locking part for selectively locking the cover part in a closed state is further provided on one side of the upper edge of the trunk body part.
Hinge device for vehicle frunk. According to claim 4 or 5,
On the inner or outer surface of the gripping groove,
Characterized in that, by adding at least one tension groove, the inner surface of the gripping groove is in close contact with the cylindrical body of the hinge shaft to have a predetermined frictional force when the rotating hinge bracket rotates.
Hinge device for vehicle frunk. According to claim 4 or 5,
On the inner surface of the gripping groove,
Characterized in that, by adding at least one lubricant groove, the inner surface of the gripping groove is in close contact with the cylindrical body of the hinge shaft to have a predetermined frictional force when the rotating hinge bracket rotates.
Hinge device for vehicle frunk.

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