KR20100010173A

KR20100010173A - Headrest folding apparatus

Info

Publication number: KR20100010173A
Application number: KR1020080071046A
Authority: KR
Inventors: 이민수
Original assignee: 지엠대우오토앤테크놀로지주식회사
Priority date: 2008-07-22
Filing date: 2008-07-22
Publication date: 2010-02-01

Abstract

PURPOSE: A headrest folding apparatus is provided to rotate a headrest regardless of the back of the front because a frame of a headrest revolves in place. CONSTITUTION: A headrest folding apparatus comprises a frame(110), a housing(130), a rotating plate(150), a first torsion spring(170), and a fixing member(190). The frame supports the headrest. A connecting groove(132) is formed in both sides(131) of the housing. A stopper(133) is formed inside the side plate. The rotating plate has a fixing hole(151) fixed to the frame. A hanging groove(152) hanged on the stopper is formed on the upper part of the fixing hole. A hanging projection(153) hanged on the stopper is formed on the lower part of the fixing hole. The first torsion spring is fixed to the frame. The end of the first torsion spring is fixed to the fixing groove and the other end of the first torsion spring is fixed to the rotating groove. The first torsion spring rotates the rotating plate. The fixing member is connected to the lower part of the rotating plate. A fixing projection(195) contacted to the hanging projection is formed in the fixing member to stop the rotation of the rotating plate. A wire(193) is connected to the other end of the fixing member. A second torsion spring with elasticity is installed on the side of the fixing member.

Description

Headrest Folding Apparatus

The present invention relates to a headrest folding device, and more particularly, to a headrest folding device for folding a headrest without removing the headrest from the seat.

Recently, RV vehicles or vans have rear seats arranged in two or three rows, and various folding structures are applied to the rear seats for loading cargoes.

Therefore, when the bulky or heavy cargo is to be loaded, the back seat of the rear seat is folded, and at the same time, the seat cushion is inserted into the bottom of the heat transfer seat, so that the position of the recliner is set lower than that of the existing seat, and the upper part is wide. Load spaces are formed to accommodate bulky or heavy cargo.

RV cars and vans have a very small space between seats in proportion to the interior space of the vehicle.Therefore, if you want to secure a space by laying the back of the seat without lifting the rear seat to secure a cargo loading space, Since the headrests are caught in the back of the front seat, they cannot be laid out, so the headrests are removed and laid down.

However, since the separated headrest is almost left unattended, such as being left in the car, the headrest may become dirty or damaged due to an error in storage or handling, and may also be lost.

In addition, it is very cumbersome and inconvenient to separate or recombine the headrest every time the back seat of the rear seat is laid down, and a method of rotating and folding the headrest has been proposed to solve such inconvenience.

In addition, Korean Patent Publication No. 2005-103429 discloses a 'bending device of the headrest,' will be briefly described with reference to FIGS. 1A and 1B.

As shown, the headrest bending device includes a housing 10, a headrest 20, a holding member 30, a braking member 40, a wire 40b and a main spring 50.

The housing 10 is installed inside the seat back plate, and is installed in the guide groove 12 and the inner side of which the upper part is opened with concentric circles on the upper sides of each side plate 11 respectively. The upper middle portion coinciding with the guide groove 12 is provided with a bracket 10a forming the receiving groove 17.

In addition, the headrest 20 is installed on both of the stay rod 22 and the horizontal shaft portion 222 formed with both vertical portions 221 to which the support member 21 is coupled and a horizontal shaft portion 222 connecting the lower end thereof. And the hinge piece 23 is coupled to the hinge hole 13 is coupled.

The holding member 30 is installed in the bracket 10a to be rotated in the opposite direction to the headrest 20 by the repulsive force of the holding spring 35, the guide groove (up) when the headrest 20 is upright 12 and a holding groove 32 is formed to hold the horizontal shaft portion 222 crossing the receiving groove 17 and to be stopped in an upright state, and a holding jaw 34 is formed on the bottom surface.

In addition, the braking member 40 is installed on the lower side of the bracket 10a to be rotated in the opposite direction to the holding member 30 by the repulsive force of the braking spring 46, the holding member 30 is upright on the upper surface When holding the headrest 20 in a state, a braking jaw 42 is formed to hang the holding jaw 34 and not to rotate.

One end is attached to the rear end of the braking member 40 and the other end is attached to the lever (not shown) installed on the outside of the back plate, the brake spring 40 by pulling the braking member 40 by operating the lever. Rotation in the opposite direction to the repulsive force of the) is provided with a wire (40b) for releasing the braking of the holding member (30).

In addition, one end is hooked to the horizontal shaft portion 222 and the other end is hooked to one side plate 11 of the housing 10, the repulsive force is released when the braking of the holding member 30 by the braking member 40 is released It is configured to include a main spring (50) to act to rotate the headrest 20 in the upright position forward.

Such a conventional headrest bending device is rotated while the horizontal shaft portion of the stay rod is moved to the upper portion of the guide groove, causing interference with the front plate when the headrest is folded, and thus the back plate is not smoothly rotated. Since the headrest is in contact with the floor panel of the vehicle after the folding of the headrest, the backrest is maintained in an inclined state rather than a horizontal state, making it difficult to load cargo.

[Document 1] Republic of Korea Patent Publication No. 2005-103429 (Published October 31, 2005)

The present invention has been made to solve the above problems, an object of the present invention is to provide a head restraint device for the headrest is rotated in place when the headrest is folded.

Another object of the present invention is to provide a headrest folding device that does not interfere with the front of the backrest when folding the headrest, as well as the backrest is kept horizontal after folding.

In order to achieve the above object, the headrest folding device of the present invention includes a frame supporting a headrest, coupling grooves are formed on both side plates so that the frame is rotatably coupled, and stoppers protrude inwardly on the side plates, and both side plates. A housing having a fixing groove formed in the connecting plate for connecting the housing, and a fixing hole fixed to the frame is formed, and a locking groove that is caught by the stopper is formed on the upper side of the fixing hole, and a locking protrusion protruding toward the lower side is formed on one side thereof. A rotating plate to which the torsion spring is fixed, fixed to the frame, one end of which is fixed to the fixing groove and the other end of which is fixed to the rotating plate, and a fixing protrusion rotatably coupled to a lower portion of the rotating plate and caught by a locking protrusion of the rotating plate. Is formed and the other end of the wire is connected to the second torsion soup having elasticity on one side It characterized in that it comprises a fixing member coupled to the ring.

The housing is provided with a bottom plate for connecting both side plates, the bottom plate is characterized in that it further comprises a support member for supporting the frame.

The rotating plate and the torsion spring inner peripheral surface is characterized in that the bush is fixed.

One end of the second torsion spring is fixed to the fixing member, and the other end of the second torsion spring is fixed to the side plate.

Since the frame of the headrest is rotated in place as described above, the present invention does not come into contact with the front backplate during rotation of the backrest, and does not come into contact with the floor panel of the vehicle so that the headrest is not contaminated. As it is maintained in the state is easy to load the cargo, there is a useful effect that the loading space is more secured than in the prior art.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

Figure 2 is an exploded perspective view showing the headrest folding device of the present invention, Figure 3 is a perspective view showing a state before the headrest folding device of the present invention is rotated, Figure 4 is a headrest folding device of the present invention is rotated It is a perspective view which shows the state.

2 to 4, the headrest folding device of the present invention is a frame 110 for supporting the headrest 100, a housing 130 to which the frame 110 is rotatably coupled, the frame The rotating plate 150 fixed to the 110, the first torsion spring 170 for rotating the rotating plate 150, and the fixing member 190 for maintaining the fixed state of the rotating plate 150 is configured.

The frame 110 is formed in a substantially 'U' shape, the headrest 100 is fixed to the upper side.

In addition, both side plates 131 are fixed to the housing 130 so that the frame 110 is coupled thereto, and coupling grooves 132 are formed in the side plates 131, respectively, and the side plates are disposed at an intermediate position of the coupling groove 132. A stopper 133 protrudes from the inside of 131.

In addition, the connecting plate 134 for connecting the side plate 131 is fixed between the side plate 131, the fixing plate 135 is formed in the connecting plate 134, the side plate 131 on the bottom of both side plate 131 The bottom plate 136 is fixed to the connection, and the support member 137 supporting the frame 110 is fixed to the bottom plate 136.

The rotating plate 150 has a disc shape, and a fixing hole 151 fixed to the frame 110 is formed at the center thereof, and a locking groove 152 caught by the stopper 133 at an upper side of the fixing hole 151. It is formed in an arc shape, the locking projection 153 is formed to protrude to the lower side of the rotating plate 150.

In addition, the bush 154 is coupled between the frame 110 and the fixing hole 151 of the rotating plate 150, and the rotating plate 150 is illustrated differently in FIG. 2, but the rotating plate 150 and the bush 154 are different. ) And the first torsion spring 170 may be installed in the same manner.

In addition, the first torsion spring 170 is installed on one surface of the rotating plate 150. One end of the first torsion spring 170 is fixed to the fixing groove 135, and the other end thereof is fixed to the fixing piece 155 formed on the rotating plate 150.

The first torsion spring 170 is also coupled to the outer circumferential surface of the bush 154 fixed to the frame 110.

In addition, the fixing member 190 is coupled to the lower portion of the rotating plate 150. The fixing member 190 is rotatably coupled to the fixing pin 191, the coupling member 192 is formed on one side of the fixing member 190 to be rotatably coupled to the fixing pin 191, the other side is A hole 194 is formed extending toward the center of the housing 130 to which the wire 193 is connected.

One end of the wire 193 is connected to the hole 194, and the other end of the wire 193 is connected to a lever (not shown) installed outside the back plate so that the user can pull the wire 193.

In addition, the fixing member 190 has a fixing protrusion 195 in contact with the engaging projection 153 is formed to protrude, the second torsion spring 196 is coupled between the fixing member 190 and the fixing pin 191.

One end of the second torsion spring 196 is fixed to the side plate 131, and the other end is fixed to the fixing member 190.

According to the present invention having the above configuration, when the user pulls the wire 193 to fold the headrest 100, the fixing member 190 is rotated about the fixing pin 191 as the wire 193 is pulled. .

At this time, the fixing member 190 is provided with a second torsion spring 196, and as shown in FIG. 3, the rotating plate 150 is fixed so as not to rotate, and is fixed by the wire 193. As shown in FIG. 4, the fixing protrusion 195 is rotated as it is rotated clockwise in the drawing.

When the fixing protrusion 195 is rotated such that the fixing state of the rotating plate 150 is released, the rotating plate 150 rotates the frame 110 by the first torsion spring 170.

That is, the rotation of the frame 110, one end of the first torsion spring 170 is fixed to the fixing groove 135, the other end is fixed to the fixing piece 155 of the rotating plate 150, the first torsion spring ( 170 is rotated counterclockwise as shown in FIG.

When the frame 110 is rotated, the frame 110 is rotated in place without moving the position, and the locking groove 152 of the rotating plate 150 which rotates together with the frame 110 is caught by the stopper 133 to rotate the plate ( The rotation of 150 is stopped.

Accordingly, as the rotation of the frame 110 is stopped, the rotation of the headrest 100 is stopped.

In addition, the bush 154 is fixed to the rotating plate 150 and the first torsion spring 170 to reduce noise and friction generated when the frame 110 is rotated.

As described above, when the headrest 100 is rotated in place without changing the position, the headrest 100 is rotated in place without changing the position so that the headrest 100 does not come into contact with the front plate, and the headrest 100 is smoothly made. Without contacting the floor panel of the vehicle, the back plate is folded in the same horizontal state as the cushion seat.

In addition, when the user wants to return the headrest 100, the user returns the back plate and when the force is applied clockwise to the headrest 100, the frame 110 is rotated about the coupling groove 132.

At this time, the rotating plate 150 is also rotated in the clockwise direction in the drawings of FIGS. 3 and 4 while the locking protrusion 153 of the rotating plate 150 is in contact with the fixing protrusion 195 and the fixing member 190 and the second torsion spring. Rotate (196) counterclockwise.

As the locking protrusion 153 is returned to its original position, the locking protrusion 153 is moved to the left side of the fixing protrusion 195 as shown in FIG. 3 to maintain the fixed state by the fixing member 190.

The present invention can be applied to rotate the headrest regardless of the front of the back plate, as well as to rotate the rotating object such as the headrest in a simple structure.

Figure 1a is an exploded perspective view showing a conventional headrest bending device.

Figure 1b is a front view showing a conventional headrest bending device.

Figure 2 is an exploded perspective view showing the headrest folding device of the present invention.

Figure 3 is a perspective view showing a state before the headrest folding apparatus of the present invention is rotated.

Figure 4 is a perspective view showing a state in which the headrest folding device of the present invention is rotated.

100: headrest 110: frame

130: housing 131: side plate

132: coupling groove 133: stopper

134: connecting plate 135: fixing groove

136: bottom plate 137: support member

150: rotating plate 151: fixing hole

152: locking groove 153: locking projection

154: bush 155: fixing piece

170: first torsion spring 190: fixing member

191: fixing pin 192: coupling hole

193: wire 194: hole

195: fixing projection 196: the second torsion spring

Claims

Frame supporting the headrest,

A coupling groove is formed in both side plates so that the frame is rotatably coupled, and a stopper protrudes inwardly on the side plate, and a housing in which a fixing groove is formed in a connecting plate connecting the both side plates;

A rotating plate having a fixing hole fixed to the frame and a locking groove formed on the stopper on the upper side of the fixing hole, and having a locking protrusion protruding downward from the lower side thereof;

A first torsion spring fixed to the frame and having one end fixed to the fixing groove and the other end fixed to the rotating plate to rotate the rotating plate;

A fixing member rotatably coupled to a lower portion of the rotating plate and contacting with the locking protrusion to prevent rotation of the rotating plate, and a wire connected to the other end and having a second torsion spring having elasticity on a side thereof. Headrest folding device characterized in that.

The method of claim 1,

The housing is formed with a bottom plate for connecting both side plates, the bottom plate further comprises a support member for supporting the frame headrest folding apparatus.

The method according to claim 1 or 2,

Headrest folding device, characterized in that the bush is fixed to the inner circumferential surface of the rotating plate and the first torsion spring.

The method of claim 3,

One end of the second torsion spring is fixed to the fixing member, the other end of the headrest folding apparatus, characterized in that fixed to the side plate.